NJM2835 LOW DROPOUT VOLTAGE REGULATOR V OUT V IN GND

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1 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM285 is a 5mA output low dropout voltage regulator. Advanced Bipolar technology achieves low noise, high ripple rejection and high supply voltage. 2.1V to 15.5V output voltage range, 2.2 F small decoupling capacitor, built-in noise bypass capacitor make the NJM285 suitable for various applications. FEATURES Output voltage options available V High Ripple Rejection 75dB typ. (f=1khz,vo=v Version) Output Noise Voltage Vno=45 Vrms typ. Output capacitor with 2.2 F ceramic capacitor (Vo 5.1V) Output Current Io(max.)=5mA High Precision Output Vo 1.% Low Dropout Voltage.18V typ. (Io=mA) Internal Thermal Overload Protection Internal Over Current Protection Bipolar Technology Package Outline TO-252- PIN CONFIGURATION PACKAGE OUTLINE NJM285DL1 NJM V OUT GND 1 V IN NJM285DL1 BLOCK DIAGRAM V IN V OUT Thermal Protection Bandgap Reference GND

2 OUTPUT VOLTAGE RANK LIST The WHITE column shows applicable Voltage Rank(s) NJM285 Device Name Vout Device Name Vout Device Name Vout NJM285DL V NJM285DL1-6.6V NJM285DL1-8 8.V NJM285DL V NJM285DL1-7.7V NJM285DL V NJM285DL1-2 2.V NJM285DL1-8.8V NJM285DL1-9 9.V NJM285DL V NJM285DL1-9.9V NJM285DL1-1 1.V NJM285DL V NJM285DL1-4 4.V NJM285DL V NJM285DL V NJM285DL V NJM285DL V NJM285DL V NJM285DL V NJM285DL V NJM285DL1-4 4.V NJM285DL V NJM285DL V NJM285DL1-.V NJM285DL V NJM285DL1-1.1V NJM285DL V NJM285DL1-2.2V NJM285DL V NJM285DL1-.V NJM285DL V NJM285DL1-4.4V NJM285DL V NJM285DL1-5.5V NJM285DL1-5 5.V

3 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER SYMBOL RATINGS UNIT Input Voltage V IN +2 V Power Dissipation P D 119(*1) 125(*2) mw Operating Temperature Topr C Storage Temperature Tstg C (*1): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard size, 2Layers, Cu area 1mm 2 ) (*2): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, 4Layers) (For 4Layers: Applying mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5) ELECTRICAL CHARACTERISTICS V IN= Vo+1V, C IN =. F, Co=2.2 F (2.9V<Vo 5V:Co=4.7 F,Vo 2.9V:Co=1 F),Ta=25 C PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Output Voltage Vo Io=mA -1.% - +1.% V Vo 5V Version - 2 A Quiescent Current I Q Io=mA 5V<Vo 1V Version A 1V<Vo 15V Version - 2 A Output Current Io Vo-.V ma Line Regulation Vo/ V IN V IN =Vo+1V Vo+6V(Vo 12V), V IN =Vo+1V 18V(Vo>12V), Io=mA %/V Load Regulation Vo/ Io Io= 5mA %/ma Dropout Voltage(*) V I-O Io=mA V Ripple Rejection RR ein=2mvrms,f=1khz,io=1ma Vo=V Version db Average Temperature Coefficient of Output Vo/ Ta Ta= 85 C, Io=1mA ppm/ C Voltage Output Noise Voltage V NO f=1hz 8kHz, Io=1mA, Vo=V Version Vrms Input Voltage V IN V (*): 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 THERMAL CHARACTERISTICS PARAMETER SYMBOL VALUE UNIT Junction-to-Ambient 15 (*4) ja thermal resistance 4 (*5) C/W Junction-to-Top of package 17 (*4) jt characterization parameter 12 (*5) C/W (*4): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard size, 2Layers, Cu area 1mm 2 ) (*5): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, 4Layers) (For 4Layers: Applying mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5) POWER DISSIPATION vs. AMBIENT TEMPERATURE 5 NJM285DL1 PowerDissipation (Topr=-4~+85 C,Tj=15 C) Power Dissipation P D (mw) on 4 layers board on 2 layers board Temperature : Ta( C)

5 TEST CIRCUIT A I IN V IN V OUT V IN.μF NJM285 GND 2.2μF*6 (ceramic) I OUT V V OUT *6 2.9<Vo 5.V version : Co=4.7μF(ceramic) Vo 2.9V version : Co=1μF(ceramic) TYPICAL APPLICATION V IN V IN V OUT V OUT.μF NJM285 GND 2.2μF*7 *7 2.9<Vo 5.V version : Co=4.7μF Vo 2.9V version : Co=1μF *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 The 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 an output noise or an oscillation of the regulator due to lack of the phase compensation. On the other hand, use of a larger C O reduces an output noise and a ripple output, and also improves an output transient response when load rapidly changes. 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, a 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 an output voltage and superior temperature characteristic.

6 DC CHARACTERISTICS (V Version).2 NJM285_.V Output Voltage vs. Input Voltage 4 NJM285_.V Output Voltage vs. Output Current.5.1 Output Voltage : Vo(V) Io=A 2.9 Io=1mA 2.8 Io=mA Input Voltage : VIN(V) Output Voltage : Vo(V) VIN=4.V NJM285_.V Ground Pin Current v.s. Output Current VIN=4.V.5. NJM285_.V Dropout Voltage vs. Output Current Ground Pin Current : IGND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) Output Current:Io(mA) NJM285_.V Load Regulation vs. Output Current 15 NJM285_.V Peak Output Current vs. Input Voltage Load Regulation : dvo/dio(mv) VIN=4.V Peak Output Current : IoMAX(mA) Input Voltage : VIN(V)

7 DC CHARACTERISTICS (V Version) 2 NJM285_.V Quiescent Current v.s. Input Voltage Output is open. 15 Quiescent Current : IQ (ua) Input Voltage : VIN(V) AC CHARACTERISTICS (V Version) Output Noise Voltage : Vn(uVrms) NJM285_.V Output Noise Voltage vs. Output Current VIN=4.V LPF:8kHz Ripple Rejection Ratio : RR (db) NJM285_.V Ripple Rejection Ratio v.s. Frequency Io=1mA Io=mA VIN=4.V ein=2mvrms Io=mA k 1k 4 1k 5 Frequency : f (Hz)

8 Ripple Rejection : RR (db) NJM285_.V Ripple Rejection vs. Output Current f=1khz f=1khz VIN=4.V ein=2mvrms Equivalent Serise Resistance : ESR( NJM285_.V Equivalent Serise Resistance vs. Output Current VIN=4V STABLE REGION 1u 1u 1u 1m 1m 1m 7m Output Current : Io(A)

9 TEMPERATURE CHARACTERISTICS (V Version).4.5 NJM285_.V Dropout Voltage v.s. NJM285_.V Output Voltage v.s. Io=mA..5 Dropout Voltage:dVI-O (V) Output Voltage Vo (V) Temperature Ta ( o C) 25 NJM285_.V Quiescent Current v.s. Temperature.1 NJM285_.V Line Regulation v.s. Io=mA Quiescent Current : IQ (ua) Output is open Line Regulation : dvo/dio (%/V) NJM285_.V Load Regulation v.s. Io=-5mA 4.5 NJM285_.V Output Voltage v.s. Temperature Load Regulation : dvo/dio (%/ma) Output Voltage Vo (V) Io=mA Temperature Ta ( o C)

10 TEMPERATURE CHARACTERISTICS (V Version) 4 5 NJM285_.V Short Circuit Current v.s. Output is short to ground. Short Circuit Current : ISC (ma) TRANSIENT RESPONSE (V Version).8 NJM285_.V Load Transient Response 6.1 NJM285_.V Line Transient Response Output Voltage : Vo [V] Output Current Output Voltage VIN=4V Time : t [ s] Output Current : Io [ma] Output Voltage : Vo [V] Input Voltage Output Voltage Co=4.7mF(Ceramic) Io=mA Time : t [ s ] Input Voltage: VIN [V]

11 DC CHARACTERISTICS (8.5V Version) Output Voltage vs. Input Voltage 25 Ground Pin Current v.s. Output Current VIN=9.5V Output Voltage : Vo(V) Io=A Io=1mA Ground Pin Current : IGND (ma) Io=mA Input Voltage : VIN(V) Output Current : IO(mA).5 Dropout Voltage vs. Output Current NJM28_8.5V Load Regulation vs. Output Current. - VIN=9.5V Dropout Voltage:dVI-O (V) Load Regulation : dvo/dio(mv) Output Current:Io(mA) Peak Output Current vs. Input Voltage 1 Output Voltage vs. Output Current 15 Peak Output Current : IoMAX(mA) Input Voltage : VIN(V) Output Voltage : Vo(V) VIN=9.5V

12 DC CHARACTERISTICS (8.5V Version) 2 Quiescent Current v.s. Input Voltage Output is open. 15 Quiescent Current : IQ (ua) Input Voltage : VIN(V) AC CHARACTERISTICS (8.5V Version) 2 Output Noise Voltage vs. Output Current 1 Ripple Rejection Ratio v.s. Frequency Output Noise Voltage : Vn(uVrms) VIN=9.5V LPF:8kHz Ripple Rejection Ratio : RR (db) Io=1mA Io=mA VIN=9.5V ein=2mvrms Io=mA k 1k 4 1k 5 Frequency : f (Hz) 1 Ripple Rejection vs. Output Current 1 Equivalent Serise Resistance vs. Output Current 9 VIN=9.5V Ripple Rejection : RR (db) VIN=9.5V ein=2mvrms f=1khz f=1khz Equivalent Serise Resistance : ESR( ) 1 STABLE REGION 1.1 1u 1u 1u 1m 1m 1m 7m Output Current : Io(A)

13 TEMPERATURE CHARACTERISTICS (8.5V Version).4.5 Dropout Voltage v.s. 8.7 Output Voltage v.s. Io=mA. 8.6 Dropout Voltage:dVI-O (V) Output Voltage Vo (V) Temperature Ta ( o C).1 Line Regulation v.s. Io=mA..25 Load Regulation v.s. Io=-5mA Line Regulation : dvo/dio (%/V) Load Regulation : dvo/dio (%/ma) Output Voltage v.s. Temperature 4 5 NJM28_8.5V Short Circuit Current v.s. Output is short to ground. Output Voltage Vo (V) Io=mA Temperature Ta ( o C) Short Circuit Current : ISC (ma)

14 TRANSIENT RESPONSE (8.5V Version) 8.58 Load Transient Response 6.1 Line Transient Response 6 Output Voltage : Vo [V] Output Current Output Voltage VIN=9.5V Time : t [ S] Output Current : Io [ma] Output Voltage : Vo [V] Input Voltage Output Voltage Io=mA Time : t [ s] Input Voltage : V IN [V]

15 DC CHARACTERISTICS (15V Version) Output Voltage vs. Input Voltage 2 Output Voltage vs. Output Current 15 Io=A 15 Output Voltage : Vo(V) Io=1mA Output Voltage : Vo(V) 1 5 Io=mA Input Voltage : VIN(V) VIN=16V Ground Pin Current v.s. Output Current VIN=16.V.5. Dropout Voltage vs. Output Current Ground Pin Current : IGND (ma) Dropout Voltage:dVI-O (V) Output Current : IO(mA) Output Current:Io(mA) Load Regulation vs. Output Current 15 Peak Output Current vs. Input Voltage Load Regulation : dvo/dio(mv) VIN=16.V Peak Output Current : IoMAX(mA) Input Voltage : VIN(V)

16 DC CHARACTERISTICS (15V Version) 2 NJM285_15.V Quiescent Current v.s. Input Voltage Output is open. 15 Quiescent Current : IQ (ua) Input Voltage : VIN(V) AC CHARACTERISTICS (15V Version) 2 Output Noise Voltage vs. Output Current 1 Ripple Rejection Ratio v.s. Frequency 9 Output Noise Voltage : Vn(uVrms) VIN=16V LPF:8kHz Ripple Rejection Ratio : RR (db) Io=1mA Io=mA VIN=16V ein=2mvrms Io=mA k 1k 4 1k 5 Frequency : f (Hz) 1 Ripple Rejection vs. Output Current 1 Equivalent Serise Resistance vs. Output Current 9 VIN=16V Ripple Rejection : RR (db) f=1khz f=1khz VIN=16V ein=2mvrms Equivalent Serise Resistance : ESR( ) 1 STABLE REGION 1.1 1u 1u 1u 1m 1m 1m 7m Output Current : Io(A)

17 TEMPERATURE CHARACTERISTICS (15V Version).4.5 Dropout Voltage v.s Output Voltage v.s. Io=mA Dropout Voltage:dVI-O (V) Output Voltage Vo (V) Temperature Ta ( o C) Quiescent Current : IQ (ua) Quiescent Current v.s. Output is open Line Regulation : dvo/dio (%/V) Line Regulation v.s. Io=mA Load Regulation v.s. Io=-5mA Output Voltage v.s. Temperature Load Regulation : dvo/dio (%/ma) Output Voltage Vo (V) Io=mA Temperature Ta ( o C)

18 TEMPERATURE CHARACTERISTICS (15V Version) 4 5 Short Circuit Current v.s. Output is short to ground. Short Circuit Current : ISC (ma) TRANSIENT RESPONSE (15V Version) 15.8 NJM285_15.V Load Transient Response Line Transient Response 18 Output Voltage : Vo [V] Output Current Output Voltage VIN=16V Time : t [ s] Output Current : Io [ma] Output Voltage : Vo [V] Input Voltage Output Voltage Io=mA Time : t [ s] Input Voltage : VIN [V] [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