DROPOUT VOLTAGE REGULATOR

Transcription

1 ch LOW DROPOUT VOLTAGE REGULATOR! GENERAL DESCRIPTION! PACKAGE OUTLINE The is a ch low dropout voltage regulator with ON/OFF control. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. F! FEATURES " High Ripple Rejection 7dB typ. (f=khz Vo=V version) " Output Noise Voltage V NO =µvrms typ. " Output capacitor with.µf ceramic capacitor (Vo.7V) " Output Current Io(max.)=mA x ch " High Precision Output Vo±.% " Low Dropout Voltage.V typ. (Io=6mA) " ON/OFF Control " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline SOT--6 (MTP-6 :.8x.9x.mm)! PIN CONFIGURATION 6 F PIN FUNCTION. V OUT. GND. V OUT. CONTROL. 6. CONTROL --

2 ! EQUIVALENT CIRCUIT V OUT Control Bandgap Reference Thermal Protection V OUT Control ON/OFF Control ON/OFF Control GND! OUTPUT VOLTAGE RANK LIST Device Name V OUT Ch Ch F-.V.V F-8.8V.V F-.V.V F-8.V.8V F-68.6V.8V F-8.8V.v F-88.8v.8v F-.V.V F-8.V.8V F-.V.V F-.V.V F-.V.V F-.V.V - -

3 ! ABSOLUTE MAXIMUM RATINGS (Ta= C) PARAMETER SYMBOL RATINGS UNIT Input Voltage + V Control Voltage V CONT +(*) V Power Dissipation P D (*) SOT--6 (*) mw Operating Temperature Topr +8 C Storage Temperature Tstg + C (*): When input voltage is less than +V, the absolute maximum control voltage is equal to the input voltage. (*): Mounted on glass epoxy board based on EIA/JEDEC. (.x76.x.6mm: Layers) (*): Device itself.! Operating voltage =+. +V (In case of Vo<.V version) ( =Vo+V, C IN =.µf, Co=.µF: Vo.7V (Co=.µF :.8V<Vo.6V:, Co=.7µF : Vo.8V), Ta= C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage Vo Io=mA -.% - +.% V Quiescent Current I Q V CONT =, V CONT = V or V CONT =, V CONT = V - µa Io=mA, Except I CONT Quiescent Current I Q V CONT = V CONT = Io=mA, Except I CONT - 7 µa Quiescent Current at Control OFF I Q(OFF) V CONT =V - - na Output Current Io Vo-.V - ma Line Regulation Vo/ =Vo+V Vo+6V, Io=mA - -. %/V Load Regulation Vo/ Io Io= 6mA - -. %/ma Dropout Voltage(*) V I-O Io=6mA -..8 V Ripple Rejection RR ein=mvrms, f=khz, Io=mA, db Average Temperature Coefficient of Output Voltage Output Noise Voltage Control Voltage for ON-state Control Voltage for OFF-state Vo/ Ta V NO Vo=V version Ta= 8 C, Io=mA f=hz 8kHz, Io=mA, Vo=V version - ± - ppm/ C - - µvrms V CONT(ON) V V CONT(OFF) V (*): The output voltage excludes under.v. (*): =Vo+V means add V to higher output voltage. The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. - -

4 ! TEST CIRCUIT A I IN VOUT.µ F *6 (ceramic) I OUT V VOUT.µ F A I CONT CONTROL VOUT V V CONT.µ F *6 (ceramic) I OUT V VOUT A I CONT CONTROL V V CONT GND *6.8V<Vo.6V version : Co=.µF(ceramic) Vo.8V version : Co=.7µF(ceramic)! TYPICAL APPLICATION In the case where ON/OFF Control is not required: VOUT V OUT.µ F *7.µ F R ( kω) CONTROL VOUT V OUT R ( kω).µ F *7 CONTROL GND *7.8V<Vo.6V version : Co=.µF Vo.8V version : Co=.7µF Connect control terminal to terminal - -

5 In use of ON/OFF CONTROL: VOUT V OUT.µ F.µ F *7 R R CONTROL VOUT V OUT.µ F *7 CONTROL GND *7.8V<Vo.6V version : Co=.µF Vo.8V version : Co=.7µF State of control terminal: H output is enabled. L or open output is disabled. %In the case of using a resistance "R" between and control. The current flow into the control terminal while the IC is ON state (I CONT ) can be reduced when a pull up resistance "R" is inserted between and the control terminal. The minimum control voltage for ON state (V CONT (ON) ) is increased due to the voltage drop caused by I CONT and the resistance "R". The I CONT is temperature dependence as shown in the "Control Current vs. Temperature" characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the V CONT (ON) over the required temperature range. - -

6 ! POWER DISSIPATION vs. AMBIENT TEMPERATURE Power Dissipation PD(mW) F Power Dissipation (Topr=-~+8,Tj=,P D =mw(ta )) On Board( mm, FR-) Device itself Ambient Temperature Ta( ) - 6 -

7 .. _.V Output Voltage vs. Input Voltage Co=. µf(ceramic). _.V Output Voltage vs. Output Current Output Voltage : Vo(V) Io=A.9 Io=mA.8 Io=mA Input Voltage : VIN(V) Output Voltage : Vo(V)... =.V Co=µF(Ceramic) Output Current : Io(mA) _.V Ground Pin Current v.s. Output Current =.V Co=.µF(Ceramic).. _.V Dropout Voltage vs. Output Current Co=.µF(Ceramic) Ground Pin Current : IGND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) 6 8 Output Current:Io(mA) _.V Control Current vs. Control Voltage VIN=.V Co=.µF(Ceramic) Io=mA. _.V Output Voltage vs. Control Voltage Control Current : I Cont ( µa) Rc=kΩ Rc=Ω Output Voltage : Vo(V).. Rc=Ω Rc=kΩ Rc=kΩ Rc=kΩ Control Voltage : V (V) Cont. VIN=.V Co=.µF(Ceramic) Io=mA... Control Voltage : V Cont (V) -7-

8 Load Regulation : dvo/dio(mv) _.V Load Regulation vs. Output Current Quiescent Current : IQ (µa) _.V Quiescent Current v.s. Input Voltage Output is open. Co=.µF(Ceramic) including Icont -7 =.V Co=.µF(Ceramic) -8 Output Current : Io(mA) Input Voltage : VIN(V) Output Noise Voltage : Vn ( µvrms) 8 6 _.V Output Noise Voltage vs. Output Current =.V LPF:8kHz Co=.µF. µ. µ µ. m m m Output Current : Io(A) Ripple Rejection Ratio : RR (db) _.V Ripple Rejection Ratio v.s. Frequency Io=mA Io=mA Io=mA VIN=.V ein=mvrms Co=.µF(Ceramic) Cp=.µF k k k Frequency : f (Hz) _.V Equivalent Serise Resistance vs. Output Current Co=.µF(Ceramic) Cp=.µF Equivalent Serise Resistance : ESR ( Ω). STABLE REGION.... Output Current : Io(A) - 8 -

9 .. _.V Dropout Voltage v.s. Io=6mA Co=µF(Ceramic). _.V Output Voltage v.s. Io=mA Co=µF(Ceramic). Dropout Voltage:dVI-O (V)... Output Voltage Vo (V) Temperature Ta ( o C) Control Voltage : VCONT(OFF) (V).. _.V Control Voltage v.s. Io=mA Co=µF(Ceramic) Control Current : ICONT ( µa) 8 6 _.V Control Current v.s. Output is open Co=µF(Ceramic) V CONT=.6V - - Temperature Ta ( o C) Quiescent Current : IQ (µa) _.V Quiescent Current v.s. Output is open. Co=µF(Ceramic) - Short Circuit Current : ISC (ma) _.V Short Circuit Current v.s. Output is short to ground. Co=µF(Ceramic)

10 . _.V Line Regulation v.s. Io=mA Co=µF(Ceramic).. _.V Load Regulation v.s. Io=-6mA Co=µF(Ceramic) Line Regulation : dvo/dio (%/V). -. Load Regulation : dvo/dio (%/ma) _.V Output Voltage v.s. Temperature. Output Voltage Vo Io=mA Co=µF(Ceramic) - Temperature Ta ( o C) - -

11 7 _.V ON/OFF Transient Response Without Load 7 _.V ON/OFF Transient Response 6 6 Output Voltage : Vo [V] Control Voltage Output Voltage - VIN=.V Co=.µF(Ceramic) - Io=mA Time : t [ S] Control Voltage : Vo [V] Output Voltage : Vo [V] Control Voltage Output Voltage - VIN=.V Co=.µF(Ceramic) - Io=mA Time : t [ms] Control Voltage : Vo [V].8 _.V Line Transient Response 7.8 _.V Load Transient Response Output Voltage : Vo [V] Input Voltage Output Voltage Co=.µF(Ceramic) Io=mA Time : t [µs] 6 Inputo Voltage : VIN [V] Output Voltage : Vo [V] Output Current Output Voltage VIN=.V.9 Co=.µF(Ceramic) - Io=mA Time : t [µs] - Output Current : Io [ma] [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. --