LOW DROPOUT VOLTAGE REGULATOR
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- Cornelius Lambert
- 5 years ago
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1 NJM83 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM83 is a 3mA output low dropout voltage regulator with ON/OFF control. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current..v to.v output voltage range, F small decoupling capacitor, built-in noise bypass capacitor make the NJM83 suitable for various applications. PACKAGE OUTLINE NJM83U FEATURES Output voltage options available..v (.V step) High Ripple Rejection 7dB typ. (f=khz Vo=3V Version) Output Noise Voltage Vno= Vrms typ. (Vo=3V Version) Output capacitor with. F ceramic capacitor (Vo.V) Output Current Io(max.)=3mA High Precision Output Vo.% Low Dropout Voltage.V typ. (Io=mA) ON/OFF Control (Active High) Internal Thermal Overload Protection Internal Over Current Protection Bipolar Technology Package Outline SOT-89- PIN CONFIGURATION 3 NJM83U. CONTROL. GND 3. N.C.. V OUT. V IN BLOCK DIAGRAM V IN V OUT Control Bandgap Reference Thermal Protection GND Ver
2 NJM83 OUTPUT VOLTAGE RANK LIST Device Name Vout NJM83U-.V NJM83U-.V NJM83U-3 3.V NJM83U V NJM83U-.V NJM83U-7.7V NJM83U-8.8V NJM83U-.V NJM83U-8 8.V NJM83U-8 8.V NJM83U-8 8.V NJM83U-9 9.V NJM83U-.V NJM83U-.V The WHITE column shows applicable Voltage Rank(s) - - Ver.-3-
3 NJM83 ABSOLUTE MAXIMUM RATINGS (Ta= C) PARAMETER SYMBOL RATINGS UNIT Input Voltage V IN + V Control Voltage V CONT + V Power Dissipation P D (*) 9(*) mw Operating Temperature Topr - +8 C Storage Temperature Tstg - + C (*): Mounted on glass epoxy board. (7. x.3 x.mm:based on EIA/JDEC standard size, Layers, Cu area mm ) (*): Mounted on glass epoxy board. (7. x.3 x.mm:based on EIA/JDEC standard, Layers) ( Layers: Applying 7. 7.mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD-) INPUT VOLTAGE RANGE V IN =+.3V~8V (In case of Vo <.V) ELECTRICAL CHARACTERISTICS (V IN= Vo+V, C IN =. F, Co=. F (.9V<Vo.V:Co=. F,.9V<Vo.9V:Co=.7 F, Vo.9V: Co= F),Ta= C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Vo Io=3mA -.% - +.% V Quiescent Current I Q Io=mA, except Icont Vo V Version A V<Vo V Version - 9 A V<Vo V Version - A Quiescent Current at Control OFF I Q(OFF) V CONT =V - - na Output Current Io Vo-.3V 3 ma Line Regulation Vo/ V IN V IN =Vo+V Vo+V(Vo V Version) V IN =Vo+V 8V(Vo>V Version), Io=3mA - -. %/V Load Regulation Vo/ Io Io= 3mA %/ma Dropout Voltage(*) V I O Io=mA -..8 V Ripple Rejection RR ein=mvrms,f=khz,io=ma, Vo=3V Version db Average Temperature Coefficient of Output Voltage Vo/ Ta Ta= 8 C, Io=mA - - ppm/ C Output Noise Voltage V NO f=hz 8kHz, Io=mA Vo=3V Version - - Vrms Control Current I CONT V CONT =.V 3 A Control Voltage for ON-state V CONT(ON). - - V Control Voltage for OFF-state V CONT(OFF) - -. V (*3): 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. Ver
4 NJM83 TEST CIRCUIT A I IN V IN V OUT V IN.μF NJM83.μF * (ceramic) I OUT V V OUT A I CONT CONTROL V V CONT GND *.9V<Vo.V version: Co=.μF(ceramic).9V<Vo.9V version: Co=.7μF(ceramic) Vo.9V version: Co=μF(ceramic) TYPICAL APPLICATIONS In the case where ON/OFF Control is not required: V IN VIN V OUT V OUT.μF NJM83.μF * R CONTROL GND *.9V<Vo.V version: Co=.μF(ceramic).9V<Vo.9V version: Co=.7μF(ceramic) Vo.9V version: Co=μF(ceramic) Connect control pin to V IN pin - - Ver.-3-
5 NJM83 In use of ON/OFF CONTROL: V IN V IN V OUT VOUT.μF NJM83.μF * R CONTROL GND *.9V<Vo.V version: Co=.μF(ceramic).9V<Vo.9V version: Co=.7μF(ceramic) Vo.9V version: Co=μF(ceramic) State of control pin: H output is enabled. L or open output is disabled. In the case of using a resistance "R" between V IN and control. If this resistor is inserted, it can reduce the control current when the control voltage is high. The applied voltage to control terminal should set to consider voltage drop through the resistor R and the minimum control voltage for ON-state. The V CONT (ON) and I CONT have temperature dependence as shown in the "Control Current vs. Temperature" and " Control Voltage vs. Temperature" characteristics. Therefore, the resistance "R" should be selected to consider the temperature characteristics. Input Capacitor C IN Input Capacitor C IN is required to prevent oscillation and reduce power supply ripple for applications when high power supply impedance or a long power supply line. Therefore, use the recommended C IN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between GND and V IN as shortest path as possible to avoid the problem. Output Capacitor C O Output capacitor (C O ) will be required for a phase compensation of the internal error amplifier. The capacitance and the equivalent series resistance (ESR) influence to stable operation of the regulator. Use of a smaller C O may cause excess output noise or oscillation of the regulator due to lack of the phase compensation. On the other hand, Use of a larger C O reduces output noise and ripple output, and also improves output transient response when rapid load change. Therefore, use the recommended C O value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between GND and V OUT as shortest path as possible for stable operation. The recommended capacitance depends on the output voltage rank. Especially, low voltage regulator requires larger C O value. In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature characteristic, a DC bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough. When selecting C O, recommend that have withstand voltage margin against output voltage and superior temperature characteristic though this product is designed stability works with wide range ESR of capacitor including low ESR products. Ver
6 NJM83 DC CHARACTERISTICS (3V Version) 3. NJM83_3.V vs. Input Voltage NJM83_3.V vs. Output Current : Vo(V) Io=A Io=3mA : Vo(V).. Io=mA Input Voltage : VIN(V). VIN=.V 3 Output Current : Io(mA) NJM83_3.V Ground Pin Current v.s. Output Current VIN=.V.3. NJM83_3.V Dropout Voltage vs. Output Current Ground Pin Current : I GND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) 3 Output Current:Io(mA) NJM83_3.V Control Current vs. Control Voltage VIN=.V Io=3mA 3. NJM83_3.V vs. Control Voltage Control Current : I Cont ( A) 3 Rc=k Rc= : Vo(V) 3.. Rc= Rc=k Rc=k Rc=k 3 Control Voltage : V Cont (V). VIN=.V Co=.7uF(Ceramic) Io=3mA... 3 Control Voltage : V Cont (V) - - Ver.-3-
7 NJM83 DC CHARACTERISTICS (3V Version) Load Regulation : dvo/dio(mv) NJM83_3.V Load Regulation vs. Output Current - VIN=.V - 3 Output Current : Io(mA) Peak Output Current : IoMAX(mA) NJM83_3.V Peak Output Current vs. Input Voltage 8 8 Input Voltage : VIN(V) NJM83_3.V Quiescent Current v.s. Input Voltage Output is open. including Icont Quiescent Current : IQ ( A) Input Voltage : VIN(V) Ver
8 NJM83 AC CHARACTERISTICS (3V Version) Output Noise Voltage : Vn( Vrms) 8 NJM83_3.V Output Noise Voltage vs. Output Current Co=.7 F m m m Output Current : Io(A) VIN=.V LPF:8kHz Ripple Rejection Ratio : RR (db) NJM83_3.V Ripple Rejection Ratio v.s. Frequency Io=mA Io=3mA VIN=.V ein=mvrms Io=mA k k k Frequency : f (Hz) 8 NJM83_3.V Ripple Rejection vs. Output Current f=khz NJM83_3.V Equivalent Serise Resistance vs. Output Current VIN=V Ripple Rejection : RR (db) 7 3 VIN=.V ein=mvrms f=khz... Output Current : Io(mA) Equivalent Serise Resistance : ESR( ). VIN=8V STABLE REGION. m m m Output Current : Io(A) Ver.-3-
9 NJM83 TEMPERATURE CHARACTERISTICS (3V Version).3 NJM83_3.V Dropout Voltage v.s. NJM83_3.V Control Voltage v.s. Temperature. Dropout Voltage:dVI-O (V) Control Voltage : V CONT(ON) Io=3mA - NJM83_3.V Control Current v.s. VCONT=.V Output is open 3. NJM83_3.V v.s. IN =V Io=3mA Control Current : Icont ( A) 8 Vo (V) Temperature Ta ( o C) NJM83_3.V Quiescent Current v.s. Temperature Quiescent Current : I Q ( Output is open. - Ver
10 NJM83 TEMPERATURE CHARACTERISTICS (3V Version). NJM83_3.V Line Regulation v.s. Io=3mA.3. NJM83_3.V Load Regulation v.s. Io=-3mA Line Regulation : dvo/dvin (%/V). -. Load Regulation : dvo/dio (%/ma) NJM83_3.V v.s. Temperature NJM83_3.V Short Circuit Current v.s. Output is short to ground. Vo (V) 3.. Short Circuit Current : I SC (ma) Io=3mA - Temperature Ta ( o C) Ver.-3-
11 NJM83 TRANSIENT RESPONSE (3V Version) 7 NJM83_3.V ON/OFF Transient Response without Load 7 NJM83_3.V ON/OFF Transient Response : Vo [V] Time : t [S] Control Voltage VIN=.V Co=.7uF(Ceramic) Io=mA Control Voltage : Vcont [V] : Vo [V] 3 - VIN=.V Io=3mA Control Voltage -3 8 Time : t [ms] Control Voltage : Vcont [V] 3. NJM83_3.V Load Transient Response 3 3. NJM83_3.V Line Transient Response : Vo [V] VIN=.V Output Current.9-8 Time : t [ S] 3 Output Current : Io [ma] : Vo [V] Input Voltage VIN=.V Io=3mA.9-8 Time : t [ S] 3 - Input Voltage : V IN [V] Ver
12 NJM83 DC CHARACTERISTICS (8.V Version) NJM83_8.V vs. Input Voltage NJM83_8.V vs. Output Current 8. Io=A 8 : Vo(V) Io=3mA : Vo(V) Io=mA Input Voltage : VIN(V) VIN=9.V 3 Output Current : Io(mA) NJM83_8.V Ground Pin Current v.s. Output Current VIN=9.V.3. NJM83_8.V Dropout Voltage vs. Output Current Ground Pin Current : I GND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) 3 Output Current:Io(mA) NJM83_8.V Control Current vs. Control Voltage NJM83_8.V vs. Control Voltage Control Current : I Cont ( A) 3 VIN=9.V Io=3mA Rc=k Rc= Rc=k 8 Control Voltage : V Cont (V) : Vo(V) 8 Rc= Rc=k Rc=k Vin=9.V Io=3mA... 3 Control Voltage : V (V) Cont - - Ver.-3-
13 NJM83 DC CHARACTERISTICS (8.V Version) NJM83_8.V Load Regulation vs. Output Current NJM83_8.V Peak Output Current vs. Input Voltage - VIN=9.V 9 8 Load Regulation : dvo/dio(mv) Peak Output Current : Io MAX(mA) Output Current : Io(mA) 8 8 Input Voltage : VIN(V) Quiescent Current : I Q ( A) NJM83_8.V Quiescent Current v.s. Input Voltage Output is open. including Icont Input Voltage : VIN(V) Ver
14 NJM83 AC CHARACTERISTICS (8.V Version) NJM83_8.V Output Noise Voltage vs. Output Current NJM83_8.V Ripple Rejection Ratio v.s. Frequency VIN=9.V LPF:8kHz 9 Io=mA Output Noise Voltage : Vn( Vrms) Co= F Co=. F Ripple Rejection Ratio : RR (db) Io=mA Io=3mA VIN=8.V ein=mvrms m m m k k k Output Current : Io(A) Frequency : f (Hz) Ripple Rejection : RR (db) NJM83_8.V Ripple Rejection vs. Output Current VIN=9.V ein=mvrms Co=uF(Ceramic) f=khz f=khz... Output Current : Io(mA) Equivalent Serise Resistance : ESR( ). NJM83_8.V Equivalent Serise Resistance vs. Output Current VIN=9.V STABLE REGION Output Current : Io(A) VIN=8V. m m m - - Ver.-3-
15 NJM83 TEMPERATURE CHARACTERISTICS (8.V Version).3 NJM83_8.V Dropout Voltage v.s. Temperature NJM83_8.V Control Voltage v.s. Dropout Voltage:dVI-O (V) Control Voltage : V CONT(ON) Io=3mA NJM83_8.V v.s. IN =9.V Io=3mA Co=mF(Ceramic) NJM83_8.V Quiescent Current v.s. Temperature Vo (V) Quiescent Current : I Q ( Output is open. 8 - Temperature Ta ( o C) -. NJM83_8.V Line Regulation v.s. Io=3mA.3. NJM83_8.V Load Regulation v.s. Io=-3mA Line Regulation : dvo/dvin (%/V). -. Load Regulation : dvo/dio (%/ma) Ver
16 NJM83 TEMPERATURE CHARACTERISTICS (8.V Version) NJM83_8.V v.s. Temperature NJM83_8.V Short Circuit Current v.s. Output is short to ground. Vo (V) 8 Short Circuit Current : I SC (ma) Io=3mA - Temperature Ta ( o C) - TRANSIENT RESPONSE (8.V Version) NJM83_8.V ON/OFF Transient Response without Load NJM83_8.V ON/OFF Transient Response : Vo [V] 8 Control Voltage VIN=9.V Co=. F(Ceramic) Io=mA - 3 Time : t [S] Control Voltage : Vcont [V] : Vo [V] 8 VIN=9.V Co=. F(Ceramic) Io=3mA Control Voltage - 8 Time : t [ms] Control Voltage : Vcont [V] : Vo [V] VIN=9.V Co=. F(Ceramic) NJM83_8.V Load Transient Response Output Current Time : t [ S] 3 3 Output Current : Io [ma] : Vo [V] Input Voltage VIN=9.V Co=. F(Ceramic) Io=3mA NJM83_8.V Line Transient Response 8. 8 Time : t [ S] Input Voltage : V IN [V] - - Ver.-3-
17 NJM83 DC CHARACTERISTICS (V Version). NJM83_V vs. Input Voltage NJM83_V vs. Output Current. Io=A : Vo(V) Io=3mA : Vo(V).7 Io=mA Input Voltage : VIN(V) VIN=V 3 Output Current : Io(mA) NJM83_V Ground Pin Current v.s. Output Current VIN=.V.3. NJM83_V Dropout Voltage vs. Output Current Ground Pin Current : I GND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) 3 Output Current:Io(mA) NJM83_V Control Current vs. Control Voltage VIN=V Io=3mA Rc=k Rc= NJM83_V vs. Control Voltage Rc= Control Current : I Cont ( A) 3 Rc=k : Vo(V) 8 Rc=k Rc=k 8 Control Voltage : V Cont (V) Vin=V Io=3mA... 3 Control Voltage : V Cont (V) Ver
18 NJM83 DC CHARACTERISTICS (V Version) NJM83_V Load Regulation vs. Output Current NJM83_V Peak Output Current vs. Input Voltage - VIN=.V 9 8 Load Regulation : dvo/dio(mv) Peak Output Current : Io MAX(mA) Output Current : Io(mA) Input Voltage : VIN(V) Quiescent Current : I Q ( A) NJM83_.V Quiescent Current v.s. Input Voltage Output is open. including Icont Input Voltage : VIN(V) Ver.-3-
19 NJM83 AC CHARACTERISTICS (V Version) 3 NJM83_V Output Noise Voltage vs. Output Current NJM83_V Ripple Rejection Ratio v.s. Frequency Output Noise Voltage : Vn( Vrms) Co= F m m m Output Current : Io(A) VIN=V LPF:8kHz Ripple Rejection Ratio : RR (db) Io=mA Io=3mA VIN=V ein=mvrms Io=mA k k k Frequency : f (Hz) NJM83_V Ripple Rejection vs. Output Current NJM83_V Equivalent Serise Resistance vs. Output Current Ripple Rejection : RR (db) VIN=V ein=mvrms f=khz f=khz... Output Current : Io(mA) Equivalent Serise Resistance : ESR( ). VIN=V STABLE REGION Output Current : Io(A) VIN=8V. m m m Ver
20 NJM83 TEMPERATURE CHARACTERISTICS (V Version).3 NJM83_V Dropout Voltage v.s. Co=. F(Ceramic) NJM83_V Control Voltage v.s. Temperature. Dropout Voltage:dVI-O (V) Control Voltage : V CONT(ON) Io=3mA Co=. F(Ceramic) - Vo (V)...7 NJM83_V v.s. IN =V Io=3mA Co=.mF(Ceramic). - Temperature Ta ( o C) Quiescent Current : I Q ( A) NJM83_V Quiescent Current v.s. Output is open. Co=. F(Ceramic) -. NJM83_V Line Regulation v.s. Io=3mA Co=. F(Ceramic).3. NJM83_V Load Regulation v.s. Io=-3mA Co=. F(Ceramic) Line Regulation : dvo/dvin (%/V). -. Load Regulation : dvo/dio (%/ma) Ver.-3-
21 NJM83 TEMPERATURE CHARACTERISTICS (V Version) NJM83_V v.s. Temperature NJM83_V Short Circuit Current v.s. Output is short to ground. Co=. F(Ceramic) Vo (V) 8 Short Circuit Current : I SC (ma) Io=3mA Co=. F(Ceramic) - Temperature Ta ( o C) - TRANSIENT RESPONSE (V Version) NJM83_.V ON/OFF Transient Response without Load 3 NJM83_.V ON/OFF Transient Response 3 Control Voltage 3 Control Voltage : Vo [V] 3 VIN=.V Co=. F(Ceramic) Io=mA - 3 Time : t [S] Control Voltage : Vo [V] : Vo [V] 3 - VIN=.V Co=. F(Ceramic) - Io=3mA -3 8 Time : t [ms] Control Voltage : Vo [V] : Vo [V] Output Current NJM83_.V Load Transient Response VIN=.V Co=. F(Ceramic).9-8 Time : t [ S] 3 3 Output Current : Io [ma] : Vo [V] Input Voltage VIN=.V Co=. F(Ceramic) Io=3mA NJM83_.V Line Transient Response.9 8 Time : t [ S] Input Voltage : V IN [V] Ver
22 NJM83 [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. - - Ver.-3-
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