High Current, High Speed LDO Regulators, Voltage Detector Function

Transcription

1 XC643/XC644 Series ETR12_4 High Current, High Speed LDO Regulators, Voltage Detector Function GENERAL DESCRIPTION The XC643/XC644 series are highly precise, low noise, high current, positive voltage low dropout regulators with built-in voltage detector. They are fabricated using Torex s CMOS process. Performance features of the series includes high ripple rejection and low dropout voltage, and the series features a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor. Detect voltage is selectable in 1mV increments within the range of.9v to 5.6V and the LDO output voltage is selectable within a range of.9v to 5.6V (XC643).9V to 5.1V (XC644), also in 1mV increments. The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series. The current limiter's foldback circuit also operates as a short circuit protection for the output current limiter and the output pin. The series provides options to the user to select from a variety of circuit features, such as detector monitoring, detector output logic, CE and EN pin input logic, internal pull-up / down resistance, and power ready. The IC's internal regulator circuit can be placed in stand-by mode via the EN function (XC643/ XC644 A, C series). The whole IC can be put in to stand-by mode via the CE function with the XC643/4D series (semi-custom). In the stand-by mode, power consumption is greatly reduced. The XC643/ XC644A series features the toggle operation function. The regulator output can be OFF when the XC643/4B series detects voltage (semi-custom). The XC643/ XC644E series can monitor another power source by using the VSEN pin (semi-custom). The XC643/ XC644F series can delay the detector output: the delay time can be controlled by the use of an external capacitor (semi-custom). APPLICATIONS Smart phones / Mobile phones Portable games Digital still cameras / Camcorders Digital audio equipments Reference voltage sources Multi-function power supplies FEATURES Maximum Output Current Dropout Voltage : More than 3mA (38mA limit) (1.8 VR OUT 5.3V) [XC643] More than 5mA (6mA limit) (2.5V VR OUT 4.9V) [XC644] : 1mA 2mA Operating Voltage Range : 2.V ~ 6.V VR Output Voltage :.9V ~ 5.6V [XC643].9V ~ 5.1V[XC644] VD Detect Voltage :.9V ~ 5.5V More than 2.V (V IN sensing) VR.VD Temp. Coefficient : ±1ppm/ (TYP.) Low Power Consumption : 35μA (TYP.) High Ripple Rejection : Highly Accurate : ±2% Operating Temperature Low ESR Capacitor Compatible : - 4 ~ +85 : Ceramic capacitor compatible Ultra Small Packages : SOT-25, SOT-89-5, USP-6B Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL APPLICATION CIRCUITS Rpull 22k Rpull 22k Rpull 22k XC643 A C D Series XC643E Series XC643F Series Rpullup Rpullup Rpullup XC644 A C D Series XC644E Series XC644F Series 1/6

2 XC643/XC644 Series BLOCK DIAGRAM 1) XC643/XC644 AA AE AL AR Series EN ON/OFF Control toggle FF T Q VR circuit VIN R Current Limit Error Amp. CFB R2 VROUT Voltage Reference R1 VDOUT R4 Comp. VD R3 VSS 2) XC643/XC644 CA CB Series 3) XC643/XC644 CC CD Series 4) XC643/XC644 CE CF CR CS Series 5) XC643/XC644 CH CK CT CU Series 6) XC643/XC644 CL CM Series 7) XC643/XC644 CN CP Series *Diodes inside the circuit are an ESD protection diode and a parasitic diode. 2/6

3 XC643/XC644 Series BLOCK DIAGRAM (Continued) 8) XC643/XC644 DA DB DE DF DL DM DR DS Series 9) XC643/XC644 DC DD DH DK DN DP DT DU Series CE ON/OFF Control each circuit VIN CE ON/OFF Control each circuit VIN Current Limit Error Amp. CFB R2 VROUT Current Limit Error Amp. CFB R2 VROUT Voltage Reference R1 Voltage Reference R1 VDOUT R4 VDOUT R4 Comp. VD R3 VSS Comp. VD R3 VSS 1) XC643/XC644 EV EX Series 11) XC643/XC644 FV FX Series VSEN VIN VIN Error Amp. Voltage Reference Current Limit CFB R2 R1 VROUT Cdelay Rdelay Error Amp. Voltage Reference Current Limit CFB R2 R1 VROUT VDOUT R4 VDOUT R4 Comp. VD R3 VSS Comp. VD R3 VSS 12) XC643/XC644 FY FZ Series VIN Cdelay Rdelay Error Amp. Voltage Reference Current Limit CFB R2 R1 VROUT VDOUT R4 Comp. VD R3 VSS 3/6

4 XC643/XC644 Series PRODUCT CLASSIFICATION Ordering Information XC643/XC (*1) DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION A Toggle,EN function C EN function 1 Operational Function D CE function E VSEN Pin F Cd pin 2 Type of Regulator - As in the chart below (*1) Output Voltage & Detect Voltage Packages (Order Unit) - MR-G PR-G DR-G (*1) The -G suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. Internally set sequential number relating to output voltage and detect voltage (refer to the chart below) VR setting output voltage range:.9v~5.6v [XC643].9V~5.1V [XC644] Detect voltage setting range:.9v ~5.5V 1mV increments are available SOT-25 (3,pcs/Reel) SOT-89-5 (1,pcs/Reel) USP-6B (3,pcs/Reel) PIN NUMBER : 2 Types 2 EN / CE FUNCTION EN / CE LOGIC PULL UP/DOWN RESISTANCE VD SENSE PIN VD OUTPUT LOGIC PIN NUMBER1 A Function High Active Pull-Down Function VIN Detect L A,C,D B Function High Active Pull-Down Function VIN Detect H C Function High Active Pull-Down Function VROUT Detect L C,D D Function High Active Pull-Down Function VROUT Detect H E Function High Active Nonfunctional VIN Detect L A,C,D F Function High Active Nonfunctional VIN Detect H H Function High Active Nonfunctional VROUT Detect L C,D K Function High Active Nonfunctional VROUT Detect H L Function Low Active Pull-Up Function VIN Detect L A,C,D M Function Low Active Pull-Up Function VIN Detect H N Function Low Active Pull-Up Function VROUT Detect L C,D P Function Low Active Pull-Up Function VROUT Detect H R Function Low Active Nonfunctional VIN Detect L A,C,D S Function Low Active Nonfunctional VIN Detect H T Function Low Active Nonfunctional VROUT Detect L C,D U Function Low Active Nonfunctional VROUT Detect H V Nonfunctional - - VIN / VSEN Detect L X Nonfunctional - - VIN / VSEN Detect H E,F Y Nonfunctional - - VROUT Detect L Z Nonfunctional - - VROUT Detect H F * For the XC643/XC644 AB/AC/AD/AF/AH/AK/AM/AN/AP/AS/AT/AU series. For further detail, please ask your sales contacts. 4/6

5 XC643/XC644 Series PRODUCT CLASSIFICATION (Continued) Ordering Information (Continued) Pin Number 3,4 Type (8 ~ 99 : Standard voltage products) XC643 Series 34 VROUT VDOUT 34 VROUT VDOUT 34 VROUT VDOUT 34 VROUT VDOUT : Hysteresis Range 3.% (TYP.) for an error flag For the other voltages, please ask your sales contacts. XC644 Series 34 VROUT VDOUT 34 VROUT VDOUT 34 VROUT VDOUT 34 VROUT VDOUT For the other voltages, please ask your sales contacts. 5/6

6 XC643/XC644 Series PRODUCT CLASSIFICATION (Continued) Ordering Example (Standard Products) PRODUCT NAME PRODUCT DESCRIPTION VROUT VOLTAGE VDOUT XC643/4CH8MR EN Function, High Active, VROUT Sense, Detect L XC643/4CE81MR EN Function, High Active, VIN Sense, Detect L XC643/4DE82MR CE Function, High Active, VIN Sense, Detect L XC643/4DE83MR CE Function, High Active, VIN Sense, Detect L XC643/4DE84MR CE Function, High Active, VIN Sense, Detect L XC643/4DE85MR CE Function, High Active, VIN Sense, Detect L XC643/4DE86MR CE Function, High Active, VIN Sense, Detect L XC643/4FV87MR Cd Function, VIN Sense, Detect L XC643/4FV88MR Cd Function, VIN Sense, Detect L XC644DE89MR CE Function, High Active, VIN Sense, Detect L XC644DE9MR CE Function, High Active, VIN Sense, Detect L XC644DE91MR CE Function, High Active, VIN Sense, Detect L /6

7 XC643/XC644 Series PRODUCT CLASSIFICATION Selection Guide 1. TOGGLE FUNCTION, VD SELF-SATURATION AS OPTION SERIES TOGGLE FUNCTION (BUILT-IN) XC643/XC644A VD with Toggle Function XC643/XC644C ~ F VD with No Toggle Function 2. STAND-BY MODE FUNCTION AS OPTION SERIES XC643/XC644A, C XC643/XC644D XC643/XC644E, F STAND-BY MODE FUNCTION VR with Stand-By Mode Function Chip Stand-By Mode Function No Stand-By Mode Function 3. CE / EN INPUT LOGIC, INTERNAL PULL-UP/DOWN AS OPTION (*A,C,D Series) SERIES CE INPUT LOGIC XC643/XC644 * A ~ D High Active with Pull Down XC643/XC644 * E ~ K High Active with No Pull Down XC643/XC644 * L ~ P Low Active with Pull Up XC643/XC644 * R ~ U Low Active with No Pull Up 4. VD SENSE AS OPTION (*A,C,D,F and F Series) (*1) SERIES XC643/XC644 * A, B, E, F, L, M, R, S, V, X XC643/XC644 * C, D, H, K, N, P, T, U, Y, Z XC643/XC644 E, V ~ Z VD SENSE PIN VIN VOUT VSEN 5. VD OUTPUT LOGIC AS OPTION (*A,C,D,E,F and F Series) (*1) SERIES VD OUTPUT LOGIC FUNCTION XC643/XC644 * A, C, E, H, L, N, R, T, V, Y Detect L XC643/XC644 * B, D, F, K, M, P, S, U, X, Z Detect H 6. VD DELAY FUNCTION AS OPTION SERIES XC643/XC644A ~ E XC643/XC644F DELAY FUNCTION No Delay Delay Time Adjustable by Connecting Cd (*1) XC643 / XC644 A series supports the AA / AE / AL / AR series. XC643 / XC644 E series supports the EV/EX series. XC643 / XC644 F series supports the FV/FX/FY/FZ series. 7/6

8 XC643/XC644 Series PIN CONFIGURATION SOT-25 (TOP VIEW) SOT-89-5 (TOP VIEW) USP-6B (BOTTOM VIEW) * The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and metal masking to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the V SS (No. 5) pin. PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTION SOT-25 SOT-89-5 USP-6B VIN Power Input VSS Ground EN VR ON / OFF Control CE ON / OFF Control VSEN VD Monitoring Cd Delay Capacitor Connection VDOUT VD Output VROUT VR Output NC No connection PIN FUNCTIOS ASSIGNMENT XC643/XC644A~D/A,B,C,D,E,F,H,K Series EN/CE H L STATUS ON OFF XC643/XC644A~D/L,M,N,P,R,S,T,U Series EN/CE H L STATUS OFF ON H=High Level L=Low Level 8/6

9 XC643/XC644 Series ABSOLUTE MAXIMUM RATINGS Power Dissipation PARAMETER SYMBOL RATINGS UNITS Input Voltage VIN 7. V VR Output Current VRIOUT 7 (*1) ma VR Output Voltage VROUT VSS -.3 ~ VIN +.3 V VD Output Current VDIOUT 5 ma VD Output Voltage VDOUT VSS -.3 ~ 7. V VCE / VEN / VCd Pin Voltage VCE / VEN / VCd VSS -.3 ~ VIN +.3 VSEN Output Voltage VSEN VSS -.3 ~ 7. V SOT-25 SOT-89-5 USP-6B Pd 25 6 (4mm x 4mm Standard board) (*2) 5 13 (4mm x 4mm Standard board) (*2) 1 1 (4mm x 4mm Standard board) (*2) Operating Temperature Range Topr - 4 ~ + 85 Storage Temperature Range Tstg - 55 ~ (*1) VRI OUT Pd/ (V IN -VR OUT ) (*2) The power dissipation figure shown is PCB mounted and is for reference only. Please see the power dissipation page for the mounting condition. V mw 9/6

10 XC643/XC644 Series ELECTRICAL CHARACTERISTICS XC643/XC644 AA AE AL AR Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current (XC643 Series) V IN =VR OUT(T) +1.V VR OUT 5.3V VR IR OUT(T) =5.V or more, V IN =6.V VR OUTMAX OUT =5.4V VR OUT 2.1V, V IN =3.1V ma 1 VR OUT =5.5V V EN =ON(V IN or V SS ) VR OUT =5.6V VR Maximum Output Current (XC644 Series) VR OUT 4.9V V IN =V ROUT(T) +2.V VR IR OUTMAX V ROUT(T) =4.V or more, V IN =6.V OUT =5.V V EN =ON(V IN or V SS ) VR OUT =5.1V VR OUT <2.5V VR Load Regulation VR OUT 1mA IR OUT 1mA mv 1 VR Dropout Voltage Supply Current (AA Series) Supply Current (AL Series) Supply Current (AE Series) Supply Current (AR Series) VR Line Regulation Vdif1 IR OUT =3mA - E-1 Vdif2 IR OUT =1mA - E-2 mv 1 I DD V IN =V EN =VR OUT(T) +1.V VR OUT.9V, V IN =2.V - V IN =VR OUT(T) +1.V, V EN =V SS VR OUT.9V, V IN =2.V V IN =V EN =VR OUT(T) +1.V VR OUT.9V, V IN =2.V - V IN =VR OUT(T) +1.V, V EN =V SS VR OUT.9V, V IN =2.V μa 2 VR OUT(T) +1.V V IN 6.V VR OUT / VR OUT.9V, 2. V IN 6.V ( V IN VR OUT ) VR OUT 4.5V, 5.5 V IN 6.V %/V 1 IR OUT =3mA, VR OUT 1.75V, IR OUT =1mA Input Voltage V IN V - VR Output Voltage VR Temperature OUT / ppm/ IR ( Topr VR OUT ) OUT =3mA, -4 Topr 85 - ±1 - Characteristics 1 VR Ripple Rejection Rate PSRR V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR OUT 1.25V, IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more,v IN =5.75V+.5Vp-pAC db 3 VR Current Limiter (XC643 Series) 1.8V VR OUT IRlim V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V, V IN =3.1V, V EN =ON(V IN or V SS ) 3 38 VR OUT <1.8V - 38 VR Current Limiter (XC644 Series) 2.5V VR OUT VR Short-Circuit Current (XC643 Series) IRlim V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V V EN =ON(V IN or V SS ) 5 6 VR OUT <2.5V - 6 V IN =VR OUT(T) +1.V IRshort VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V, V IN =3.1V, V EN =ON(V IN or V SS ) VR Short-Circuit Current (XC644 Series) IRshort V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V, V IN =3.5V, V EN =ON(V IN or V SS ) ma 1 - ma 1 - ma ma ma 1 EN "High" Level Current V ENH V IN V 1 EN "Low" Level Current V ENL V 1 EN "High" Level Current (AA Series ) I ENH V IN =V EN =VR OUT(T) +1.V μa 2 EN "High" Level Current (AE AL AR Series) I ENH V IN =V EN =VR OUT(T) +1.V μa 2 EN "Low" Level Current (AL Series) I ENL V IN =VR OUT(T) +1.V,V EN =V SS μa 2 EN "Low" Level Current (AA AE AR Series) I ENL V IN =VR OUT(T) +1.V,V EN =V SS μa 2 1/6

11 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 AA AE AL AR Series (Continued) Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Hysteresis Range V HYS - VD Supply Current VD Output Current VD Detect Voltage Temperature Characteristics I DDVD I DOUT V DF / ( Topr V DF ) V EN =OFF(V IN or V SS ) NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. *1: About EN condition XC643/XC644AA, AE Series ON=V IN OFF=V SS XC643/XC644AL, AR Series ON=V SS OFF=V IN V DF(E).2 V DF(E).5 V DF(E).8 V IN =2.V V IN =3.V μa V IN =4.V V IN =5.V V IN =6.V VD OUT =.5V - - V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V V - ma -4 Topr 85 - ±1 - ppm/ /6

12 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 CA CB CC CD CE CF CH CK CL CM CN CP CR CS CT CU Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current (XC643 Series) V IN =VR OUT(T) +1.V 3 VR OUT 5.3V VR OUT(T) =5.V or more, V IN =6.V VR IR OUTMAX OUT =5.4V VR OUT 2.1V,V IN =3.1V ma 1 VR OUT =5.5V V EN =ON(V IN or V SS ) 239 VR OUT =5.6V 191 VR Maximum Output Current (XC644 Series) VR OUT 4.9V V IN =V ROUT(T) +2.V VR IR OUTMAX V ROUT(T) =4.V or more, V IN =6.V OUT =5.V 477 V EN =ON(V IN or V SS ) VR OUT =5.1V 429 VR OUT <2.5V ma 1 VR Load Regulation VR OUT 1mA IR OUT 1mA mv 1 VR Dropout Voltage Supply Current (CA CB CC CD Series) Supply Current (CL CM CN CP Series) Supply Current (CE CF CH CK Series) Supply Current (CR CS CT CU Series) VR Line Regulation Vdif1 IR OUT =3mA E-1 - Vdif2 IR OUT =1mA E-2 mv 1 V IN =V EN =VR OUT(T) +1.V VR OUT.9V,V IN =2.V V IN =VR OUT(T) +1.V, V EN =V SS 4 75 I DD VR OUT.9V or more, V IN =2.V V IN =V EN =VR OUT(T) +1.V - μa 2 VR OUT.9V,V IN =2.V V IN =VR OUT(T) +1.V, V EN =V SS 35 7 VR OUT.9V,V IN =2.V VR OUT(T) +1.V V IN 6.V VR OUT / VR OUT.9V,2. V IN 6.V ( V IN VR OUT ) VR OUT 4.5V,5.5 V IN 6.V %/V 1 IR OUT =3mA, VR OUT 1.75V,IR OUT =1mA Input Voltage V IN V - VR Output Voltage VR Temperature OUT / ( Topr VR OUT ) Characteristics IR OUT =3mA, -4 Topr 85 - ±1 - ppm/ 1 V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR Ripple Rejection Rate PSRR VR OUT 1.25V,V IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more, V IN =5.75V+.5Vp-pAC db 3 VR Current Limiter (XC643 Series) 1.8V VR OUT IRlim V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V, V EN =ON(V IN or V SS ) VR OUT <1.8V VR Current Limiter V (XC644 Series) IN =VR OUT(T) +2.V IRlim VR 2.5V VR OUT(T) =4.V or more, V IN =6.V OUT V EN =ON(V IN or V SS ) VR OUT <2.5V V IN =VR OUT(T) +1.V VR Current Limiter IRshort VR (XC643 Series) OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V, V EN =ON(V IN or V SS ) VR Current Limiter (XC644 Series) IRshort V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V,V IN =3.5V, V EN =ON(V IN or V SS ) ma ma ma ma 1 EN "High" Level Voltage V ENH V IN V 1 EN "Low" Level Voltage V ENL V 1 EN "High" Level Current (CA CB CC CD Series) I ENH V IN =V EN =VR OUT(T) +1.V μa 2 EN "High" Level Current (CE CF CH CK CL CM CN CP CR CS CT CU I ENH V IN =V EN =VR OUT(T) +1.V μa 2 Series) EN "Low" Level Voltage (CL CM CN CP Series) I ENL V IN =VR OUT(T) +1.V,V EN =V SS μa 2 EN "Low" Level Voltage (CA CB CC CD CE CF CH CK CR CS CT CU Series) I ENL V IN =VR OUT(T) +1.V,V EN =V SS μa 2 12/6

13 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 CA CB CC CD CE CF CH CK CL CM CN CP CR CS CT CU Series (Continued) Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Detect Voltage V DF(E) -.98 V DF(T) 1.2 V 4 VD Hysteresis Range V HYS - VD Supply Current VD Output Current VD Detect Voltage Temperature Characteristics I DDVD I DOUT V DF / ( Topr V DF ) V EN =OFF(V IN or V SS ) NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. *1: About EN condition XC643/XC644 CA, CB, CC, CD, CE, CF, CH, CK Series ON=V IN OFF=V SS XC643/XC644 CL, CM, CN, CP, CR, CS, CT, CU Series ON=V SS OFF=V IN V DF(E).2 V DF(E).5 V DF(E) V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V V DOUT =.5V - - V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V V μa ma 5-4 Topr 85 - ±1 - ppm/ 4 13/6

14 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 DA DB DC DD DE DF DH DK DL DM DN DP DR DS DT DU Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current (XC643 Series) V IN =VR OUT(T) +1.V 3 VR OUT 5.3V VR IR OUT(T) =5.Vor more, V IN =6.V VR OUTMAX OUT =5.4V VR OUT 2.1V,V IN =3.1V ma 1 VR OUT =5.5V V EN =ON(V IN or V SS ) 239 VR OUT =5.6V 191 VR Maximum Output Current (XC644 Series) VR OUT 4.9V V IN =V ROUT(T) +2.V VR IR OUTMAX V ROUT(T) =4.V or more, V IN =6.V OUT =5.V 477 V EN =ON(V IN or V SS ) VR OUT =5.1V /6 VR OUT <2.5V ma 1 VR Load Regulation VR OUT 1mA IR OUT 1Ma mv 1 VR Dropout Voltage Supply Current ( DA DB DC DD Series) Supply Current ( DL DM DN DP Series) Supply Current ( DE DF DH DK Series) Supply Current ( DR DS DT DU Series) Stand-by Current VR Line Regulation Vdif1 IR OUT =3mA E-1 - Vdif2 IR OUT =1mA E-2 mv 1 V IN =V EN =VR OUT(T) +1.V VR OUT.9V,V IN =2.V V IN =VR OUT(T) +1.V, V EN =V SS 4 75 I DD VR OUT.9V,V IN =2.V V IN =V EN =VR OUT(T) +1.V - μa 2 VR OUT.9V,V IN =2.V V IN =VR OUT(T) +1.V, V EN =V SS 35 7 VR OUT.9V,V IN =2.V I STB V IN =VR OUT +1.V, CE=OFF (V IN or V SS ),VDVOUT:OPEN μa 2 VR OUT(T) +1.V V IN 6.V VR OUT / VR OUT.9V,2. V IN 6.V ( V IN VR OUT ) VR OUT 4.5V,5.5 V IN 6.V %/V 1 IR OUT =3mA, VR OUT 1.75V,IR OUT =1mA Input Voltage V IN V - VR Output Voltage Temperature Characteristics VR Ripple Rejection Rate VR Current Limiter (XC643 Series) 1.8V VR OUT VR OUT / ( Topr VR OUT ) PSRR IRlim IR OUT =3mA, -4 Topr 85 - ±1 - ppm/ 1 V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR OUT 1.25V,V IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more, V IN =5.75V+.5Vp-pAC V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V, V CE =ON(V IN or V SS ) db VR OUT <1.8V VR Current Limiter V (XC644 Series) IN =VR OUT(T) +2.V IRlim VR 2.5V VR OUT(T) =4.V or more, V IN =6.V OUT V CE =ON(V IN or V SS ) VR OUT <2.5V VR Current Limiter (XC643 Series) VR Current Limiter (XC644 Series) IRshort IRshort V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V, V CE =ON(V IN or V SS ) V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V,V IN =3.5V, V CE =ON(V IN or V SS ) ma ma ma ma 1 CE High Level Voltage V CEH V IN V 1 CE "Low" Level Voltage V CEL V 1 CE "High" Level Current ( DA DB DC DD Series) I CEH V IN =V EN =VR OUT(T) +1.V μa 2 CE "High" Level Current (DE DF DH DK DL DM DN I CEH V IN =V EN =VR OUT(T) +1.V μa 2 DP DR DS DT DU Series) CE "Low" Level Voltage ( DL DM DN DP Series) I CEL V IN =VR OUT(T) +1.V,V CE =V SS μa 2 CE "Low" Level Voltage (DA DB DC DD DE DF DH DK DR DS DT DU Series) I CEL V IN =VR OUT(T) +1.V,V CE =V SS μa 2

15 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 DA DB DC DD DE DF DH DK DL DM DN DP DR DS DT DU Series (Continued) Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Detect Voltage V DF(E) -.98 V DF(T) 1.2 V 4 V VD Hysteresis Range V HYS - DF(E) V DF(E) V DF(E) V V DOUT =.5V - - VD Supply Current VD Detect Voltage Temperature Characteristics I DOUT V DF / ( Topr V DF ) V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. *1: About EN condition XC643/XC644 DA, DB, DC, DD, DE, DF, DH, DK Series ON=VIN OFF=VSS XC643/XC644 DL, DM, DN, DP, DR, DS, DT, DU Series ON=VSS OFF=VIN - ma 5-4 Topr 85 - ±1 - ppm/ 4 15/6

16 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 EV EX Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current(XC643 Series) VR OUT 5.3V V IN =VR OUT(T) +1.V 3 VR IR OUTMAX VR OUT(T) =5.V or more, V IN =6.V - - ma 1 OUT =5.4V 286 VR OUT 2.1V,V IN =3.1V VR OUT =5.5V 239 VR OUT =5.6V 191 VR Maximum Output Current(XC644 Series) VR OUT 4.9V V IR IN =V ROUT(T) +2.V VR OUTMAX OUT =5.V V ROUT(T) =4.V or more, V IN =6.V 477 VR OUT =5.1V 429 VR OUT <2.5V ma 1 VR Load Regulation VR OUT 1mA IR OUT 1mA mv 1 VR Dropout Voltage Supply Current (EV EX Series) VR Line Regulation Vdif1 IR OUT =3mA E-1 - Vdif2 IR OUT =1mA E-2 I DD VR OUT / ( V IN VR OUT ) V IN =V SEN =VR OUT(T) +1.V VR OUT.9V,V IN =2.V VR OUT(T) +1.V V IN 6.V VR OUT.9V,2. V IN 6.V VR OUT 4.5V,5.5 V IN 6.V IR OUT =3mA, VR OUT 1.75V,IR OUT =1mA mv μa %/V 1 Input Voltage V IN V - VR Output Voltage VR Temperature OUT / ( Topr VR OUT ) Characteristic IR OUT =3mA, -4 Topr 85 - ±1 - ppm/ 1 V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR Ripple Rejection Rate PSRR VR OUT 1.25V,V IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more, V IN =5.75V+.5Vp-pAC db 3 VR Current Limiter (XC643 Series) 1.8V VR OUT IRlim V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V VR OUT <1.8V VR Current Limiter (XC644 Series) V IRlim IN =VR OUT(T) +2.V V VR OUT VR OUT(T) =4.V or more, V IN =6.V VR OUT <2.5V VR Short-Circuit Current (XC643 Series) VR Short-Circuit Current (XC644 Series) IRshort IRshort V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V,V IN =3.5V ma ma ma ma 1 16/6

17 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 EV EX Series (Continued) Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Detect Voltage V DF(E) -.98 V DF(T) 1.2 V 4 VD Hysteresis Range VD Supply Current VD Detect Voltage Temperature Characteristics NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. V HYS - I DOUT V DF / ( Topr V DF ) V DF(E).2 V DF(E).5 V DOUT =.5V - - V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V V DF(E).8 V 4 - ma 5-4 Topr 85 - ±1 - ppm/ 4 17/6

18 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 FV FX Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current(XC643 Series) VR OUT 5.3V V IN =VR OUT(T) +1.V 3 VR IR OUTMAX VR OUT(T) =5.V or more, V IN =6.V - - ma 1 OUT =5.4V 286 VR OUT 2.1V,V IN =3.1V VR OUT =5.5V 239 VR OUT =5.6V 191 VR Maximum Output Current(XC644 Series) VR OUT 4.9V V IN =V ROUT(T) +2.V VR IR OUTMAX OUT =5.V V ROUT(T) =4.V or more, V IN =6.V 477 VR OUT =5.1V 429 VR OUT <2.5V ma 1 VR Load Regulation VR OUT 1mA IR OUT 1mA mv 1 VR Dropout Voltage Supply Current VR Line Regulation Vdif1 IR OUT =3mA E-1 - Vdif2 IR OUT =1mA E-2 I DD VR OUT / ( V IN VR OUT ) V IN =V SEN =VR OUT(T) +1.V VR OUT.9V,V IN =2.V VR OUT(T) +1.V V IN 6.V VR OUT.9V,2. V IN 6.V VR OUT 4.5V,5.5 V IN 6.V IR OUT =3mA, VR OUT 1.75V,IR OUT =1mA mv μa %/V 1 Input Voltage V IN V - VR Output Voltage Temperature VR OUT / ( Topr IR OUT =3mA, -4 Topr 85 - ±1 - ppm/ 1 Characteristics VR OUT ) VR Ripple Rejection Rate PSRR V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR OUT 1.25V,V IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more, V IN =5.75V+.5Vp-pAC db 3 VR Current Limiter (XC643 Series) 1.8V VR OUT IRlim V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V VR OUT <1.8V VR Current Limiter (XC644 Series) V IRlim IN =VR OUT(T) +2.V V VR OUT VR OUT(T) =4.V or more, V IN =6.V VR OUT <2.5V VR Short-Circuit Current (XC643 Series) VR Short-Circuit Current (XC644 Series) IRshort IRshort V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V,V IN =3.5V ma ma ma ma 1 18/6

19 XC643/XC644 Series ELECTRICAL CHARACTERISTICS XC643/XC644 FV FX Series Ta=25 PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Detect Voltage V DF(E) -.98 V DF(T) 1.2 V 4 VD Hysteresis V DF(E) V DF(E) V DF(E) V Range HYS V 4 VD Supply Current detection. I DOUT V DOUT =.5V - - V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V ma 5 VD Detect Voltage V Temperature DF / -4 Topr 85 - ±1 - ppm/ 4 ( Topr V Characteristics DF ) V Delay Resistance Delay IN =6.V MΩ 6 Delay Resistance =6.V/Delay Current NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before 19/6

20 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 FY FZ Series PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VR Output Voltage VR OUT(E) IR OUT =3mA.98 VR OUT(T) 1.2 V 1 VR Maximum Output Current(XC643 Series) VR OUT 5.3V V IN =VR OUT(T) +1.V 3 VR IR OUTMAX VR OUT(T) =5.V or more, V IN =6.V - - ma 1 OUT =5.4V 286 VR OUT 2.1V,V IN =3.1V VR OUT =5.5V 239 VR OUT =5.6V 191 VR Maximum Output Current(XC644 Series) VR OUT 4.9V V IR IN =V ROUT(T) +2.V VR OUTMAX OUT =5.V V ROUT(T) =4.V or more, V IN =6.V 477 VR OUT =5.1V 429 VR OUT <2.5V ma 1 VR Load Regulation VR OUT 1mA IR OUT 1mA mv 1 VR Dropout Voltage Supply Current VR Line Regulation Vdif1 IR OUT =3mA E-1 - Vdif2 IR OUT =1mA E-2 I DD VR OUT / ( V IN VR OUT ) V IN =V SEN =VR OUT(T) +1.V VR OUT.9V,V IN =2.V VR OUT(T) +1.V V IN 6.V VR OUT.9V,2. V IN 6.V VR OUT 4.5V,5.5 V IN 6.V IR OUT =3mA, VR OUT 1.75V,IR OUT =1mA mv μa %/V 1 Input Voltage V IN V - VR Output Voltage VR OUT / Temperature ( Topr VR Characteristics OUT ) IR OUT =3mA, -4 Topr 85 - ±1 - ppm/ 1 V IN =[VR OUT(T) +1.]V+.5Vp-pAC VR Ripple Rejection Rate PSRR VR OUT 1.25V,V IN =2.25V+.5Vp-pAC IR OUT =5mA, f=1khz VR OUT 4.75 or more, V IN =5.75V+.5Vp-pAC db 3 VR Current Limiter (XC643 Series) 1.8V VR OUT IRlim V IN =VR OUT(T) +1.V VR OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V VR OUT <1.8V VR Current Limiter (XC644 Series) V IN =VR OUT(T) +2.V IRlim 2.5V VR OUT VR OUT(T) =4.V or more, V IN =6.V VR OUT <2.5V V VR Short-Circuit Current IN =VR OUT(T) +1.V IRshort VR (XC643 Series) OUT(T) =5.V or more, V IN =6.V VR OUT 2.1V,V IN =3.1V ma 1 VR Short-Circuit Current (XC644 Series) IRshort V IN =VR OUT(T) +2.V VR OUT(T) =4.V or more, V IN =6.V VR OUT 1.5V,V IN =3.5V ma ma ma 1 2/6

21 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/XC644 FY FZ Series PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT VD Detect Voltage V DF(E) -.98 V DF(T) 1.2 V 4 VD Hysteresis V V HYS - DF(E) V DF(E) V DF(E) V 4 Range VD Supply Current VD Detect Voltage Temperature Characteristics I DOUT V DF / ( Topr V DF ) VD OUT =.5V - - V IN =2.V V IN =3.V V IN =4.V V IN =5.V V IN =6.V ma 5-4 Topr 85 - ±1 - ppm/ 4 V IN =6.V Delay Resistance Delay MΩ 6 Delay Resistance =6.V/Delay Current NOTE: *1: Unless otherwise stated, V IN =V OUT(T) +1.V, However VR OUT.9V, V IN =2.V *2: VR OUT(T) =Specified VR output voltage *3: V OUT(E) =Effective VR output voltage (i.e. the VR output voltage when "VR OUT(T) +1.V" is provided at the V IN pin while maintaining a certain IR OUT value). (*6) (*5) *4: Vdif={V IN1 -VR OUT1 } *5: A voltage equal to 98% of the VR output voltage whenever a stabilized VR OUT1 =IR OUT {VR OUT(T) +1.V} is input. *6: V IN1 =The input voltage when V OUT1, which appears as input voltage is gradually decreased. *7: V DF(T) : Specified detect voltage value *8: V DF(E) : Effective detect voltage value. Refer to the E- chart for V DF(T) values less than 1.5V. *9: VD output current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. 21/6

22 XC643/XC644 Series ELECTRICAL CHARACTERISTICS (Continued) XC643/644 Series VR Dropout Voltage 1 SPECIFIED DETECT VOLTAGE OUTPUT VOLTAGE SYMBOL E- E-1 E-2 VR OUT(T) V DF(T) PARAMETER VR OUTPUT VOLTAGE DETECT VOLTAGE (V) DROPOUT VOLTAGE 1 (mv) (IOUT=3mA) DROPOUT VOLTAGE 2 (mv) (IOUT=1mA) Ta=25 Ta=25 VR OUT, V DF Vdif1 Vdif2 MIN. MAX. TYP. MAX. TYP. MAX VR Dropout Voltage 2 SYMBOL E- SPECIFIED DETECT VOLTAGE V DF(T) DETECT VOLTAGE (V) MIN V DF MAX /6

23 XC643/XC644 Series TEST CIRCUITS XC643/XC644 A C Series Circuit 1 Circuit 2 Circuit 3 Circuit 4 VD Sense pin, VR OUT VD Sense pin, V IN Circuit 5 VD Sense pin, VR OUT VD Sense pin, V IN V IN VR OUT C L=1.μF ( セラミック ) V SS VR OUT EN VD OUT A VD OUT Output Capacitor Corresponding Chart VR OUT C L.9 ~ 1.2V 4.7μF 1.3 ~ 1.7V 2.2μF 1.8 ~ 5.5V 1.μF 23/6

24 XC643/XC644 Series TEST CIRCUITS (Continued) XC643/XC644D Series Circuit 1 A V IN VR OUT A V IN C L=1.μF ( セラミック ) V SS CE VD OUT C L=**μF ( セラミック ) V R L V Circuit 2 Circuit 3 Circuit 4 VD Sense pin, VR OUT VD Sense pin, V IN Circuit 5 VD Sense pin, VR OUT VD Sense pin, V IN VIN VROUT CL=1.μF ( セラミック ) VSS VROUT CE VDOUT A VDOUT Output Capacitor Corresponding Chart VR OUT C L.9 ~ 1.2V 4.7μF 1.3 ~ 1.7V 2.2μF 1.8 ~ 5.5V 1.μF 24/6

25 XC643/XC644 Series TEST CIRCUITS (Continued) XC643/XC644 EV EX Series Circuit 1 Circuit 2 Circuit 3 VIN VROUT A VIN V VSS CL=**μF ( セラミック ) V IROUT VSEN VDOUT Circuit 4 Circuit 5 Output Capacitor Corresponding Chart VR OUT C L.9 ~ 1.2V 4.7μF 1.3 ~ 1.7V 2.2μF 1.8 ~ 5.5V 1.μF 25/6

26 XC643/XC644 Series TEST CIRCUITS (Continued) XC643/XC644 FV FX Series Circuit 1 Circuit 2 Circuit 3 Circuit 4 Circuit 5 Circuit 6 Output Capacitor Corresponding Chart VR OUT C L.9 ~ 1.2V 4.7μF 1.3 ~ 1.7V 2.2μF 1.8 ~ 5.5V 1.μF 26/6

27 XC643/XC644 Series TEST CIRCUITS (Continued) XC643/XC644 FY FZ Series Circuit 1 Circuit 2 Circuit 3 Circuit 4 Circuit 5 Circuit 6 Delay Current Output Capacitor Corresponding Chart VR OUT C L.9 ~ 1.2V 4.7μF 1.3 ~ 1.7V 2.2μF 1.8 ~ 5.5V 1.μF 27/6

28 XC643/XC644 Series OPERATIONAL EXPLANATION <Output Voltage Regulator Control> The voltage, divided by resistors R1 & R2 which are connected to the VROUT pin is compared with the internal reference voltage by the error amplifier. The P-channel MOSFET, which is connected to the VROUT pin, is then driven by the subsequent output signal. The output voltage at the VROUT pin is controlled & stabilized by negative feedback. The current limit circuit and short circuit protection operate in relation to the level of output current. Further, the voltage regulator's internal circuitry can be shutdown via the EN or CE pin's signal. <Detector Function with the XC643/XC644 Series> The series' detector function monitors the voltage divided by resistors R3 & R4 which are connected to the VROUT pin or the VIN pin or the VSEN pin, as well as monitoring the voltage of the internal reference voltage source via the comparator. The VDSEN pin has options (please refer to the Selection Guide, item 4). A 'High' or 'Low' signal level can be output from the VDOUT pin when the VD pin voltage level goes below the detect voltage. The VD output logic has options (please refer to the Selection Guide, item 5).As VDOUT is an open-drain N-channel output, a pull-up resistor of about 22kΩ is needed to achieve a voltage output. Because of hysteresis at the detector function, output at the VDOUT pin will invert when the detect voltage level increases above the release voltage (15% of the detect voltage). Even when the XC643/4A, C, series are in stand-by mode, the voltage detector function operates and the output voltage at VDOUT will output according to the voltage level at VDSENSE voltage. For the XC643/XC644A,C types, in stand-by, if a voltage of the recovery voltage is present at the VROUT pin (from another power source), the VDOUT pin will be high impedance mode, and the pull up voltage will be output at VDOUT. By connecting the Cdelay pin to a capacitor (Cd), the XC643/XC644F series can apply a delay time to VDOUT voltage when releasing voltage. The delay time can be calculated from the internal resistance, Rdelay (2MΩ fixed) and the value of Cd as per the following equation. Delay Time = Cdelay x Rdelay x.7 Delay Time Rdelay standard : 1. ~ 3.5MΩ TYP : 2.MΩW: 2.MΩ Cdelay DELAY TIME (TYP.) DELAY TIME (TYP.).1μF 14. msec 7. ~ 24.5 msec.22μf 3.8 msec 15.4 ~ 53.9 msec.47μf 65.8 msec 32.9 ~ msec.1μf 14 msec 7 ~ 245 msec.22μmf 38 msec 154 ~ 539 msec.47μf 658 msec 329 ~ msec 1μF 14 msec 7 ~ 245 msec <Low ESR Capacitors> With the XC643/XC644 series regulator, a stable output voltage is achievable even if low ESR capacitors are used, as a phase compensation circuit is built-in to the regulator. In order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) be connected as close as possible, between the output pin (VROUT) and the VSS pin. Please use an output capacitor (CL) with a capacitance, based on the chart below. We also suggest an input capacitor (CIN) of 1μF : this should be connected between VIN and VSS in order to stabilize input power source. Output Capacitor VROUT.9 ~1.2V 1.3 ~ 1.7V 1.8 ~ CL More Than 4.7μF More Than 2.2μF More Than 1.μF <Current Limiter, Short-Circuit Protection> The XC643/XC644 series regulator offers a combination of current limit and circuit protection by means of a built-in fixed current limiter circuit and a foldback circuit. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, the output voltage drops further and output current decreases. When the output pin is shorted, a current of about 5mA flows. 28/6

29 XC643/XC644 Series OPERATIONAL EXPLANATION (Continued) <EN / CE Pin> The IC's internal regulator circuitry can be shut down via the signal from the EN pin with the XC643/XC644A,C series. In shutdown mode, output at the VROUT pin will be pulled down to the VSS level via R1 & R2. The whole IC's circuitry can be shut down via CE pin with the XC643/XC644D series and power consumption can be reduced to around μa (TYP.). While the voltage detector is in shutdown mode, the voltage detector output is in a post-detection state. When choosing Detect L, input current can be set by using the following formula. Input Current = VIN voltage / Pull-Up Resistance In stand-by mode, the above input current can be reduced by connecting a Pull-Up resistor between VROUT and VDOUT. Note that as the XC643/XC644*E to K types of the XC644 A,C, D series are ' High Active / No Pull-Down' and XC643/ XC644*R to U types of the XC644A,C, D series are ' Low Active / No Pull-Up', operations will become unstable with the CE pin open (See the chart below). SERIES XC643/4 * A,C, D XC643/4 * E ~ K XC643/4 * L ~ P XC643/4 * R ~ U EN/CE INPUT LOGIC High Active with Pull-Down High Active with No Pull-Down Low Active with Pull-Up Low Active with No Pull-Up (*A, C, D Series) We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the EN or CE pin. If this IC is used with the correct specifications for the EN or CE pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry if a voltage other than VIN or VSS is applied. <Toggle Operation> The XC643/XC644 A series have a built-in toggle ON/OFF switch which repeats an on/off operation via the EN pin's leading edge signal when the EN logic is Active HIGH, and via the EN pin's falling edge signal when the EN logic is Active LOW (Please also refer the figure below). The EN input signal duration should be over 5ns. If the EN input signal is less than 5ns, it is possible that the circuit fails to respond and the toggle function does not operate. To operate the toggle function properly when the EN pin voltage noise is large, a RC filter should be used to reduce the noise in the signal to the EN pin. In the case where input delay time is required, it is possible to set the time constant by connecting an RC network to the EN pin. EN Logic Active "HIGH" 29/6

30 XC643/XC644 Series NOTES ON USE 1. For the phenomenon of temporal and transitional voltage decrease or voltage increase, the IC may be damaged or deteriorated if IC is used beyond the absolute MAX. specifications. 2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please strengthen VIN and VSS wiring in particular. 3. Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. Should rapid input fluctuation or load fluctuation occur, please increase the capacitor value such as CIN or CL to stabilize the operation. 4. Torex places an importance on improving our products and their reliability. We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in their systems. 3/6

31 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS XC643 Series (1) VR Output Voltage vs. VR Output Current XC643 Series (VR: 1.8V) XC643 Series (VR: 1.8V) Output Voltage VROUT(V) (V) VIN=3.1V CIN=1.μF (ceramic), CL=1.μF (ceramic) Topr= 25 Topr= - 4 Topr= 85 Output Voltage VROUT(V) (V) CIN=1.μF (ceramic), CL=1.μF (ceramic) 2.5 VIN=3.1V VIN=2.1V 2. VIN=6.V Output Current IROUT (ma) Output Current IR OUT (ma) Output Current IROUT OUT (ma) XC643 Series (VR: 2.5V) XC643 Series (VR: 2.5V) 3. VIN=3.5V CIN=1.μF (ceramic), CL=1.μF (ceramic) CIN=1.μF (ceramic), CL=1.μF (ceramic) 3. Output Voltage VROUT(V) (V) Topr= 25 Topr= - 4 Topr= 85 Output Voltage VROUT(V) (V) VIN=3.5V VIN=2.8V VIN=6.V Output Current IROUT (ma) Output Current IR OUT (ma) Output Current IROUT (ma) Output Current IR OUT (ma) XC643 Series (VR: 3.V) XC643 Series (VR: 3.V) VIN=4.V CIN=1.μF (ceramic), CL=1.μF (ceramic) 4. CIN=1.μF (ceramic), CL=1.μF (ceramic) 4. Output Voltage VROUT(V) (V) Topr= 25 Topr= - 4 Topr= 85 Output Voltage VROUT(V) (V) VIN=4.V VIN=3.3V VIN=6.V Output Current IROUT (ma) Output Current IR OUT (ma) Output Current IROUT (ma) 31/6

32 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643 Series (Continued) (1) VR Output Voltage vs. VR Output Current (Continued) XC643 Series (VR: 5.V) VIN=6.V CIN=1.μF (ceramic), CL=1.μF (ceramic) XC643 Series (VR: 5.V) CIN=1.μF (ceramic), CL=1.μF (ceramic) Output Voltage VROUT(V) (V) Topr= 25 Topr= - 4 Topr= 85 Output Voltage VROUT(V) VIN=6.V VIN=5.3V Output Current IROUT (ma) Output Current IR OUT (ma) Output Current IROUT (ma) Output Current IR OUT (ma) XC643 Series (VR:.9V) VIN=3.1V CIN=1.μF (ceramic), CL=4.7μF (ceramic) 1.5 XC643 Series (VR:.9V) CIN=1.μF (ceramic), CL=4.7μF (ceramic) 1.5 Output Voltage VROUT(V) Topr= 25 Topr= - 4 Topr= 85 Output Voltage VROUT(V) Output Voltage VROUT (V) VIN=3.1V VIN=2.V VIN=6.V Output Current IR IROUT OUT (ma) (ma) Output Current IROUT (ma) Output Current IR OUT (ma) 32/6

33 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC644 Series (1) VR Output Voltage vs. VR Output Current 2.5 XC644 Series (VR: 1.8V) VIN=3.8V CIN=1.μF (ceramic), CL=1.μF (ceramic) 2.5 XC644 Series (VR: 1.8V) CIN=1.μF (ceramic), CL=1.μF (ceramic) Output Voltage VROUT(V) Topr = 25 Topr = - 4 Topr = Output Output Current Current IROUT(mA) IR OUT (ma) Output Voltage VROUT(V) VIN=3.8V VIN=2.1V VIN=6.V Output Current IROUT(mA) Output Current IR OUT (ma) 3. XC644 Series (VR: 2.5V) VIN=4.5V CIN=1.μF (ceramic), CL=1.μF (ceramic) 3. XC644 Series (VR: 2.5V) CIN=1.μF (ceramic), CL=1.μF (ceramic) Output Voltage VROUT(V) Topr = 25 Topr = - 4 Topr = 85 Output Voltage VROUT(V) (V) VIN=4.5V VIN=2.8V VIN=6.V Output Output Current Current IROUT(mA) IR OUT (ma) Output Current IROUT(mA) OUT (ma) XC644 Series (VR: 3.V) XC644 Series (VR: 3.V) 4. VIN=5.V CIN=1.μF (ceramic), CL=1.μF (ceramic) 4. CIN=1.μF (ceramic), CL=1.μF (ceramic) Output Voltage VROUT(V) Topr = 25 Topr = - 4 Topr = 85 Output Voltage Voltage VROUT VROUT(V) (V) VIN=5.V VIN=6.V Output Current IROUT(mA) OUT (ma) Output Current IROUT(mA) OUT (ma) 33/6

34 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC644 Series (Continued) (1) VR Output Voltage vs. VR Output Current (Continued) Output Voltage VROUT(V) Output Current IR OUT (ma) Output Current IR OUT (ma) Output Voltage VROUT(V) Output Voltage VROUT(V) Output Voltage VROUT(V) Output Current IR OUT (ma) Output Current IR OUT (ma) 34/6

35 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (2) VR Output Voltage vs. Input Voltage XC643/4 Series (VR: 1.8V) XC643/4 Series (VR: 1.8V) 2. Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) 1.9 Output Voltage VROUT(V) (V) IOUT=mA 1.2 1mA 3mA 1mA Input Input Voltage VIN V IN (V) Output Voltage VROUT(V) (V) IOUT=mA 1mA 3mA 1mA Input Voltage VIN V (V) Output Voltage VROUT (V) Output Voltage VROUT(V) XC643/4 Series (VR: 2.5V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) IOUT=mA 1mA 3mA 1mA Input Voltage VVIN (V) (V) Output Output Voltage Voltage VROUT(V) VROUT (V) XC643/4 Series (VR: 2.5V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) IOUT=mA 1mA 3mA 1mA Input Input Voltage Voltage VIN V (V) IN (V) Output Output Voltage Voltage VROUT(V) VROUT (V) XC643/4 Series (VR: 3.V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) 3.2 IOUT=mA 1mA 3mA 1mA Input Voltage VIN (V) Input Voltage V IN (V) Output Voltage VROUT(V) (V) XC643/4 Series (VR: 3.V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) 3.1 IOUT=mA 1mA 3mA 1mA Input Input Voltage Voltage VIN V(V) IN (V) 35/6

36 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (2) VR Output Voltage vs. Input Voltage (Continued) XC643/4 Series (VR: 5.V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) 5.2 XC643/4 Series (VR: 5.V) Topr=25 CIN=1.μF (ceramic), CL=1.μF (ceramic) 5.1 Output Voltage VROUT(V) (V) IOUT=mA 1mA 3mA 1mA Output Voltage VROUT(V) Output Voltage VROUT (V) IOUT=mA 1mA 3mA 1mA Input Voltage VIN V (V) Input Voltage VIN V IN (V) XC643/4 Series (VR:.9V) Topr=25 CIN=1.μF (ceramic), CL=4.7μF (ceramic) 1.2 XC643/4 Series (VR:.9V) Topr=25 CIN=1.μF (ceramic), CL=4.7μF (ceramic) 1.2 Output Output Voltage Voltage VROUT(V) VROUT (V) IROUT=mA 1mA 3mA 1mA Input Input Voltage Voltage VIN V (V) IN (V) Output Voltage VROUT (V) Output Voltage VROUT(V) IROUT=mA 1mA 3mA 1mA Input Voltage VIN (V) Input Voltage V IN (V) 36/6

37 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (3) Dropout Voltage vs. VR Output Current XC643/4 Series (VR: 1.8V) XC643/4 Series (VR: 2.5V) 1. CIN=1.μF (ceramic), CL=1.μF (ceramic) 1. CIN=1.μF (ceramic), CL=1.μF (ceramic) Dropout Dropout Voltage Voltage Vdif(V) (V) Topr= Dropout Voltage Vdif(V) Dropout Voltage Vdif (V) Topr= VR Output Current IRIROUT (ma) (ma) VR Output Current IROUT (ma) (ma) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 5.V) CIN=1.μF (ceramic), CL=1.μF (ceramic) CIN=1.μF (ceramic), CL=1.μF (ceramic) Dropout Voltage Vdif(V) Dropout Voltage Vdif (V) Topr= VR Output Current IRIROUT (ma) (ma) Dropout Voltage Vdif(V) Dropout Voltage Vdif (V) Topr= VR Output Current IROUT (ma) Output Current IR OUT (ma) XC643/4 Series (VR:.9V) 1.6 CIN=1.μF (ceramic), CL=4.7μF (ceramic) Dropout Voltage Volage Vdif(V) Topr= VR Output Output Current Current IROUT IR (ma) OUT (ma) 37/6

38 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (4) Supply Current vs. Input Voltage XC643/4 Series (VR: 1.8V) CIN=1.μF (ceramic), CL=1.μF (ceramic) 5 XC643/4 Series (VR: 2.5V) CIN=1.μF (ceramic), CL=1.μF (ceramic) 5 Supply Current ISS(μA) Supply Current Iss ( μa) Topr= Supply Supply Current Current ISS(μA) Iss (μa) Topr= Input Voltage VIN V (V) Input Voltage VIN V (V) IN (V) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 5.V) 5 CIN=1.μF (ceramic), CL=1.μF (ceramic) 5 CIN=1.μF (ceramic), CL=1.μF (ceramic) Supply Supply Current Current Iss ISS(μA) (μa) Topr= Supply Current ISS(μA) Iss (μa) Topr= Input Voltage VIN V (V) IN (V) Input Input Voltage VIN V (V) IN (V) XC643/4 Series (VR:.9V) VROUT=.9V CIN=1.μF (ceramic), CL=4.7μF (ceramic) 5. Supply Supply Current Current ISS(μA) ISS (μ A) Topr= Input Input Voltage V IN VIN (V) (V) 38/6

39 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (5) VR Output Voltage vs. Ambient Temperature Output Voltage VROUT(V) Output Voltage VROUT (V) XC643/4 Series (VR: 1.8V) VIN=2.8V CIN=1.μF (ceramic), CL=1.μF (ceramic) IOUT=mA 3mA 1mA Ambient Ambient Temperature Temperature Topr( ) Topr ( ) Output Voltage VROUT(V) (V) XC643/4 Series (VR: 2.5V) VIN=3.5V CIN=1.μF (ceramic), CL=1.μF (ceramic) IOUT=mA 3mA 1mA Ambient Temperature Topr ( ) Ambient Temperature Topr( ) 3.2 XC643/4 Series (VR: 3.V) VIN=4.V CIN=1.μF (ceramic), CL=1.μF (ceramic) 5.2 XC643/4 Series (VR: 5.V) VIN=6.V CIN=1.μF (ceramic), CL=1.μF (ceramic) Output Voltage VROUT(V) (V) IOUT=mA 3mA 1mA Ambient Ambient Temperature Topr( ) Topr( ) ( ) Output Voltage VROUT(V) (V) IOUT=mA 3mA 1mA Ambient Temperature Topr ( ) Ambient Temperature Topr( ) Output Voltage VROUT(V) (V) XC643/4 Series (VR:.9V) VIN=2.V CIN=1.μF (ceramic), CL=4.7μF (ceramic) IOUT=mA 3mA 1mA Ambient Temperature Topr Topr( ) 39/6

40 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (6) Supply Current vs. Ambient Temperature XC643/4 Series (VR: 1.8V) XC643/4 Series (VR: 2.5V) 5 VIN=2.8V 5 VIN=3.5V Supply Supply Current Current ISS(μA) Iss (μa) Ambient Ambient Temperature Topr Topr( ) Supply Supply Current ISS(μA) Iss (μa) Ambient Temperature Topr ( ) Ambient Temperature Topr( ) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 5.V) 5 VIN=4.V 5 VIN=6.V Supply Current ISS(μA) Iss (μa) Ambient Temperature Topr ( ) Ambient Temperature Topr( ) Supply Current ISS(μA) Iss (μa) Ambient Ambient Temperature Temperature Topr Topr( ) ( ) XC643/4 Series (VR:.9V) 5 VIN=2.V Supply Current ISS(μA) Supply Current: ISS (ua) Ambient Ambient Temperature Temperature: Topr( ) ( O C) 4/6

41 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) EN/CE Threshold Voltage (7) EN/CE Threshold Voltage vs. Ambient Temperature VEN EN/CE / CEH, Threshold VEN / CEL(V) Voltage VEN/CEH,VEN/CEL(V) VIN=VROUT + 1.V, IOUT=3mA CIN=CL=1.μF (ceramic) H Level Voltage L Level Voltage Ambient Temperature Topr( ) Delay Resistance (M Ω) (8) Rdelay vs. Ambient Temperature Ambient Temperature Topr( ) (9) Output Noise Density Output Noise Noise Density Density (μv (μv/roothz) / XC643/4 Series (VR: 3.V) VIN=4.V IOUT=1mA, CL=1μF (ceramic) Frequency f (khz) 41/6

42 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (1) VD Supply Current vs. Input Voltage (Only A ~ C Types) XC643/4 Series (VD: 2.V) XC643/4 Series (VD: 2.7V) Supply Current ISS (μa) VD Supply Current ISS ( μa) Topr = 85 = 25 = Supply VD Supply Current Current ISS ( μa) ISS (μa) Topr = 85 = 25 = Input Voltage VIN V IN (V) (V) Input Input Voltage VIN V IN (V) XC643/4 Series (VD: 3.6V) XC643/4 Series (VD:5.V) VD Supply Supply Current Current ISS (μa) ISS ( μa) Topr = 85 = 25 = Input Voltage VVIN (V) (V) Supply VD Supply Current Current ISS (μa) ISS ( μa) Topr = 85 = 25 = Input Voltage VIN (V) Input Voltage V IN (V) 42/6

43 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (11) vs. Ambient Temperature Detect Voltage, Release Voltage Detect Voltage, VDF, VDR(V) Release Voltage VDF, VDR (V) XC643/4 Series (VD: 2.V) VDR VDF Ambient Temperature Topr( ) ( ) Detect Voltage, Release Voltage Detect Voltage, Release Voltage VDF, VDR(V) VDF, VDR (V) XC643/4 Series (VD: 2.7V) VDR VDF Ambient Ambient Temperature Temperature Topr Topr( ) ( ) XC643/4 Series (VD: 3.6V) XC643/4 Series (VD: 5.V) Detect Voltage, Release Voltage Detect Voltage, Release Voltage VDF, VDR(V) VDF, VDR (V) VDR VDF Ambient Ambient Temperature Temperature Topr( ) Topr ( ) Detect Voltage, Release Voltage Detect Voltage, VDF, Release VDR(V) Voltage VDF, VDR (V) VDR VDF Ambient Ambient Temperature Topr Topr( ) 43/6

44 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (12) VD N-ch Driver Output Current vs. VDS XC643/4 Series (VD: 2.4V) XC643/4 Series (VD: 2.7V) Output Output Current Current IOUT IOUT(mA) 8 Topr = VIN=2.V VDS (V) Output Output Current Current IOUT IOUT(mA) VIN=1.5V Topr = 25 VIN=2.5V VIN=2.V VIN=1.V VDS (V) XC643/4 Series (VD: 3.6V) XC643/4 Series (VD: 5.V) 24 Topr = 25 4 Topr = 25 Output Output Current IOUT IOUT(mA) VIN=1.5V VIN=3.V VIN=2.5V VIN=2.V VDS (V) Output Output Current Current IOUT IOUT(mA) (ma) VIN=4.5V VIN=3.5V 2 VIN=3.V 15 VIN=2.5V 1 VIN=2.V 5 VIN=1.5V VDS (V) 44/6

45 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (13) VDN N-ch Driver Output Current vs. Input Voltage XC643/4 Series (VD: 2.V) XC643/4 Series (VD: 2.7V) 8 15 Output Current IOUT(mA) IOUT (ma) VDS=.5V Input Voltage VIN V (V) (V) Output Current IOUT(mA) (ma) VDS=.5V Input Voltage VIN (V) Input Voltage V IN (V) XC643/4 Series (VD: 3.6V) XC643/4 Series (VD: 5.V) Output Current IOUT(mA) Output Current IOUT (ma) VDS=.5V Output Current IOUT(mA) (ma) VDS=.5V Input Input Voltage Voltage VIN V(V) IN (V) Input Input Voltage Voltage VIN V IN (V) 45/6

46 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (14) Input Transient Response XC643/4 Series (VR: 1.8V) XC643/4 Series (VR: 1.8V) 5 IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= IOUT=3mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr=25 2. Input Input Voltage Current VIN VIN(V) (V) Input Voltage Output Voltage Output Voltage VOUT(V) (V) Input Current Voltage VIN(V) (V) Input Voltage Output Voltage Output Voltage VOUT(V) (V) -1 Time (4μsec/div) Time (4μsec/div) 1.7 XC643/4 Series (VR: 1.8V) XC643/4 Series (VR: 2.5V) 5 IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= Input Current VIN(V) Input Voltge VIN (V) Input Voltage Output Voltage Output Output Voltage Voltage VOUT VOUT(V) (V) Input Voltage Current VIN(V) Input Voltage Output Voltage Output Output Voltatge Voltage VOUT VOUT(V) (V) -1 Time (4μsec/div) 1.7 Time (4μsec/div) XC643/4 Series (VR: 2.5V) IOUT=3mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= XC643/4 Series (VR: 2.5V) IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= Input Voltage Current VIN(V) (V) Input Voltage Output Voltage Time (4μsec/div) Output Voltage VOUT (V) Output Voltage VOUT(V) Input Input Current Voltage VIN(V) (V) Input Voltage Output Voltage Time (4μsec/div) Output Voltage VOUT (V) Output Voltage VOUT(V) 46/6

47 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (14) Input Transient Response (Continued) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 3.V) 6 IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= IOUT=3mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= Input Input Voltage Current VIN VIN(V) Input Voltage Output Voltage Output Voltage VOUT (V) Output Voltage VOUT(V) Input Input Current Voltage VIN(V) (V) Input Voltage Output Voltage Output Voltage VOUT(V) (V) Time (4μsec/div) Time (4μsec/div) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 5.V) 6 IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= Input Input Voltage Current VIN VIN(V) Input Voltage Output Voltage Output Output Voltage Voltage VOUT VOUT(V) Input Current VIN(V) Input Voltage VIN (V) Input Voltage Output Voltage Output Voltage VOUT (V) Output Voltage VOUT(V) Time (4μsec/div) Time (4μsec/div) 4.9 XC643/4 Series (VR: 5.V) XC643/4 Series (VR: 5.V) 8 IOUT=3mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= IOUT=1mA, tr=tf=5.μsec CL=1.μF (ceramic), Topr= Input Input Voltage Current VIN VIN(V) Input Voltage Output Voltage Time (4μsec/div) Output Output Voltage Voltage VOUT VOUT(V) Input Current VIN(V) Input Voltage VIN (V) Input Voltage Output Voltage Time (4μsec/div) Output Voltage VOUT(V) 47/6

48 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (14) Input Transient Response (Continued) XC643/4 Series (VR:.9V) XC643/4 Series (VR:.9V) 4 IOUT=1mA, tr=tf=5.μsec CL=4.7μF (ceramic), Topr= IOUT=3mA, tr=tf=5.μsec CL=4.7μF (ceramic), Topr= Input Current VIN(V) Input Voltage VIN (V) Input Voltage Output Voltage Output Voltage VROUT(V) Output Voltage VROUT (V) Input Current Voltage VIN(V) (V) Input Voltage Output Voltage Output Voltage VROUT(V) Output Voltage VROUT (V) -1 Time (4μsec/div).7-1 Time (4μsec/div).7 XC643/4 Series (VR:.9V) Input Voltage Current VIN(V) (V) IOUT=1mA, tr=tf=5.μsec CL=4.7μF (ceramic), Topr=25 Input Voltage Output Voltage Output Voltage VROUT(V) (V) -1.7 Time (4μsec/div) 48/6

49 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (15) Load Transient Response 1.9 XC643/4 Series (VR: 1.8V) VIN=2.8V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr= XC643/4 Series (VR: 1.8V) VIN=2.8V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 25 Output Voltage VOUT (V) Output Voltage VOUT(V) Output Voltage Output Current Output Current IOUT (ma) Output Current IOUT (ma) Output Voltage VOUT(V) (V) Output Voltage Output Current Output Current IOUT (ma) Time (2μsec/div) Time (2μsec/div) Output Voltage VOUT(V) (V) XC643/4 Series (VR: 1.8V) VIN=2.8V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 Output Voltage Output Current Time (2μsec/div) Output Output Current Current IOUT (ma) IOUT (ma) Output Output Voltage VOUT VOUT(V) (V) XC643/4 Series (VR: 2.5V) VIN=2.5V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 Output Voltage Output Current Time (2μsec/div) Output Output Current Current IOUT IOUT (ma) (ma) 2.6 XC643/4 Series (VR: 2.5V) VIN=2.5V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr= XC643/4 Series (VR: 2.5V) VIN=2.5V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 25 Output Voltage VOUT(V) Output Voltage VOUT (V) Output Voltage Output Current Output Output Current Current IOUT (ma) IOUT (ma) Output Voltage VOUT(V) (V) Output Voltage Output Current Output Current IOUT IOUT (ma) (ma) Time (2μsec/div) Time (2μsec/div) 49/6

50 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (15) Load Transient Response (Continued) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 3.V) 3.1 VIN=4.V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr= VIN=4.V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 25 Output Output Voltage Voltage VOUT VOUT(V) (V) Output Voltage Output Current Output Current IOUT(mA) Output Current IOUT (ma) Output Output Voltage Voltage VOUT VOUT(V) (V) Output Voltage Output Current Output Voltage IOUT (ma) Output Current IOUT (ma) Time (2μsec/div) Time (2μsec/div) XC643/4 Series (VR: 3.V) XC643/4 Series (VR: 5.V) 3.1 VIN=4.V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr= VIN=6.V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 25 Output Output Voltage Voltage VOUT VOUT(V) (V) Output Current Output Voltage Output Current IOUT (ma) Output Voltage VOUT(V) (V) Output Voltage Output Current Output Current (ma) Output Current IOUT(mA) Time (2μsec/div) Time (2μsec/div) XC643/4 Series (VR: 5.V) XC643/4 Series (VR: 5.V) 2.6 VIN=2.5V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr= VIN=6.V, tr=tf=5.μsec CIN=CL=1.μF (ceramic), Topr=25 25 Output Voltage VOUT(V) (V) Output Voltage Output Current Time (2μsec/div) Output Current IOUT IOUT (ma) Output Output Voltage VOUT(V) (V) Output Voltage Output Current Time (2μsec/div) Output Current IOUT (ma) IOUT (ma) 5/6

51 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) XC643/4 Series (Continued) (15) Load Transient Response (Continued) XC643/4 Series (VR:.9V) XC643/4 Series (VR:.9V) 1. VIN=2.V, tr=tf=5.usec, CIN=1.μF, CL=4.7μF (ceramic), Topr= VIN=2.V, tr=tf=5.usec, CIN=1.μF, CL=4.7μF (ceramic), Topr=25 3 Output Voltage VOUT (V) Output Voltage VOUT(V) Output Voltage Output Current Time (2μsec/div) Output Current IOUT (ma) Output Current IOUT (ma) Output Output Voltage Voltage VOUT VOUT(V) (V) Output Voltage Output Current Time (2μsec/div) Output Current IOUT (ma) Output Current IOUT (ma) XC643/4 Series (VR:.9V) 1. VIN=2.V, tr=tf=5.usec, CIN=1.μF, CL=4.7μF (ceramic), Topr=25 3 Output Output Voltage Voltage VOUT VOUT(V) Output Voltage Output Current Output Output Current Current IOUT (ma) IOUT (ma).7 Time (2μsec/div) 51/6

52 XC643/XC644 Series TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (16) Ripple Rejection Rate Ripple Rejection Rate RR (db) XC643/4 Series (VR:.9V) VIN=2.5VDC + 1.Vp-pAC, IOUT=5mA, CL=4.7μF (ceramic) Ripple Frequency f (khz) Ripple Rejection Rate RR (db) XC643/4 Series (VR: 1.8V) VIN=2.8VDC + 1.Vp-pAC, IOUT=5mA, CL=1μF (ceramic) Ripple Frequency f (khz) XC643/4 Series (VR: 2.5V) XC643/4 Series (VR: 3.V) Ripple Rejection Rate RR (db) VIN=3.5VDC + 1.Vp-pAC, IOUT=5mA, CL=1μF (ceramic) Ripple Rejection Rate RR (db) VIN=4.VDC + 1.Vp-pAC, IOUT=5mA, CL=1μF (ceramic) Ripple Frequency f (khz) Ripple Frequency f (khz) XC643/4 Series (VR: 5.V) 9 VIN=5.75VDC +.5Vp-pAC, IOUT=5mA, CL=1μF (ceramic) Ripple Rejection Rate RR (db) Ripple Frequency f (khz) 52/6

53 XC643/XC644 Series PACKAGING INFORMATION SOT-25 Unit : mm SOT-25 Reference Pattern Layout.7 SOT-89-5 Unit : mm SOT-89-5 Reference Pattern Layout /6

54 XC643/XC644 Series PACKAGING INFORMATION USP-6B Unit : mm USP-6B Reference Pattern Layout USP-6B Reference Metal Mask Design 54/6

55 XC643/XC644 Series SOT-25 Power Dissipation (4mm x 4mm Standard board) Power dissipation data for the SOT-25 is shown in this page. The value of power dissipation varies with the mount board conditions. Please use this data as the reference data taken in the following condition. 1. Measurement Condition Condition: Mount on a board Ambient: Natural convection Soldering: Lead (Pb) free Board: Dimensions 4 x 4 mm (16 mm2 in one side) Copper (Cu) traces occupy 5% of the board area In top and back faces Package heat-sink is tied to the copper traces (Board of SOT-26 is used.) Material: Glass Epoxy (FR-4) Thickness: 1.6mm Through-hole: 4 x.8 Diameter 2.Power Dissipation vs. Ambient Temperature Evaluation Board (Unit:mm) Board Mount (Tj max = 125 ) Ambient Temperature( ) Power Dissipation Pd(mW) Thermal Resistance ( /W) Pd vs Ta Power Dissipation Pd(mW) Ambient Temperature( ) 55/6

56 XC643/XC644 Series SOT-89-5 Power Dissipation (4mm x 4mm Standard board) Power dissipation data for the SOT-89-5 is shown in this page. The value of power dissipation varies with the mount board conditions. Please use this data as the reference data taken in the following condition. 1. Measurement Condition Condition: Mount on a board Ambient: Natural convection Soldering: Lead (Pb) free Board: Dimensions 4 x 4 mm (16 mm2 in one side) Copper (Cu) traces occupy 5% of the board area In top and back faces Package heat-sink is tied to the copper traces Material: Glass Epoxy (FR-4) Thickness: 1.6mm Through-hole: 5 x.8 Diameter 2.Power Dissipation vs. Ambient Temperature Evaluation Board (Unit:mm) Board Mount (Tj max = 125 ) Ambient Temperature( ) Power Dissipation Pd(mW) Thermal Resistance ( /W) Pd vs Ta Power Dissipation Pd(mW) Ambient Temperature( ) 56/6

57 XC643/XC644 Series USP-6B Power Dissipation (4mm x 4mm Standard board) Power dissipation data for theusp-6b is shown in this page. The value of power dissipation varies with the mount board conditions. Please use this data as the reference data taken in the following condition. 1. Measurement Condition Condition: Mount on a board Ambient: Natural convection Soldering: Lead (Pb) free Board: Dimensions 4 x 4 mm (16 mm2 in one side) Copper (Cu) traces occupy 5% of the board area In top and back faces Package heat-sink is tied to the copper traces Material: Glass Epoxy (FR-4) Thickness: 1.6mm Through-hole: 4 x.8 Diameter 2.Power Dissipation vs. Ambient Temperature Evaluation Board (Unit:mm) Board Mount (Tj max = 125 ) Ambient Temperature( ) Power Dissipation Pd(mW) Thermal Resistance ( /W) Pd vs Ta Power Dissipation Pd(mW) Ambient Temperature( ) 57/6

58 XC643/XC644 Series MARKING RULE SOT-25 / SOT represents product series MARK PRODUCT SERIES 3 XC643xxxxxx 4 XC644xxxxxx SOT-25 (TOP VIEW) SOT-89-5 (TOP VIEW) 23 represents internal sequential number Sequential numbering rule 1) Order MARK NUMBERING RULE 1 1~9 2 1~99 3 A~A9 4 B~B9 5 ~Z9 *G, I, J, O, Q, W excluded 2) The same marking is printed on the product with same optional functions, product type, detect voltage, and output voltage although packages are different. 4 represents production lot number to 9,A to Z reverse character to 9, A to Z repeated (G, I, J, O, Q, W excluded) 58/6

59 XC643/XC644 Series MARKING RULE (Continued) USP-6B USP-6B (TOP VIEW) 1 represents product series MARK PRODUCT SERIES 2 XC643xxxxDx 3 XC644xxxxDx 2 represents optional functions MARK OPTIONAL FUNCTIONS PRODUCT SERIES A Toggle and EN Function XC643/4AxxDx C EN Function XC643/4CxxDx D CE Function XC643/4DxxDx E VSEN Pin XC643/4ExxDx F Cd Pin XC643/4FxxDx 3 represents product type MARK CE/EN FUNCTION EN / CE LOGIC PULL-UP/DOWN RESISTANCE VD SENSE PIN VD OUTPUT LOGIC PRODUCT SERIES A Function High Active Pull-Down Function V IN Detect L XC643/4xAxxDx C Function High Active Pull-Down Function VR OUT Detect L XC643/4xCxxDx D Function High Active Pull-Down Function V IN Detect H XC643/4xDxxDx E Function High Active Nonfunctional V IN Detect L XC643/4xExxDx F Function High Active Nonfunctional VR OUT Detect H XC643/4xFxxDx H Function High Active Nonfunctional VR OUT Detect L XC643/4xHxxDx K Function High Active Nonfunctional V IN Detect H XC643/4xKxxDx L Function Low Active Pull-Up Function V IN Detect L XC643/4xLxxDx M Function Low Active Pull-Up Function VR OUT Detect H XC643/4xMxxDx N Function Low Active Pull-Up Function VR OUT Detect L XC643/4xNxxDx P Function Low Active Pull-Up Function V IN Detect H XC643/4xPxxDx R Function Low Active Nonfunctional V IN Detect L XC643/4xRxxDx S Function Low Active Nonfunctional VR OUT Detect H XC643/4xSxxDx T Function Low Active Nonfunctional VR OUT Detect L XC643/4xTxxDx U Function Low Active Nonfunctional V IN / V SEN Detect H XC643/4xUxxDx V Nonfunctional - - V IN Detect L XC643/4xVxxDx X Nonfunctional - - VR OUT /V SEN Detect H XC643/4xXxxDx Y Nonfunctional - - VR OUT /V SEN Detect L XC643/4xYxxDx Z Nonfunctional - - VR OUT /V SEN Detect H XC643/4xZxxDx 4,5 represents output voltage and detect voltage ex.) MARK OUTPUT VOLTAGE 4 5 VROUT (V) VDOUT (V) PRODUCT SERIES XC643/4**3D* 6 represents production lot number to 9,A to Z repeated (G, I, J, O, Q, W excluded) Note: No character inversion used. 59/6