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| NJM2387/89 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2387/89 are adjustable low dropout voltage regulators . The output current is up to 1.0A and dropout voltage is 0.2V typ. at Io=0.5A. NJM2387 has ON/OFF control circuit and enable to reduce quiescent current. The NJM2387/89 is suitable for power module, TV, Display, car stereo and low power applications. PACKAGE OUTLINE NJM2387DL2 NJM2387DL3 NJM2389F FEATURE Low Dropout Voltage VI-O=0.2V typ. at Io=0.5A Output Current Io(max.)=1.0A Reference Voltage Vref=1.26V 2% ON/OFF Control (Active High : Only NJM2387) Internal Short Circuit Current Limit Internal Thermal Overload Protection Bipolar Technology Package Outline TO-252-5(NJM2387), TO-220F-4(NJM2389) PIN CONFIGURATION 3 3 12345 12345 PIN FUNCTION 1.VIN 2.ON/OFF CONTROL 3.VOUT 4.VADJ 5.GND PIN FUNCTION 1. VIN 2. VOUT 3. GND 4. VADJ 1234 NJM2387DL2 EQUIVALENT CIRCUIT VIN NJM2387DL3 NJM2389F VOUT VIN VOUT Bandgap Reference Bandgap Reference Control ON/OFF control Over Voltage Protection Thermal Over Current Protection Protection VADJ Over Voltage Protection Thermal Over Current Protection Protection VADJ GND GND NJM2387DL2/DL3 NJM2389F Ver.2004-12-22 -1- NJM2387/89 (Ta=25C) SYMBOL RATINGS UNIT VIN +35 V VCONT +35(*1) V VADJ +6 V Io 1.0 A NJM2387 10(Tc25C) / 1(Ta25C) W Power Dissipation PD NJM2389 18(Tc<50C) Operating Junction Temperature Range Tj -40 +150 C Operating Temperature Range Topr -40 +85 C Storage Temperature Range Tstg -50 +150 C (*1): This applies for NJM2387. When input voltage is less than +35V, the absolute maximum control voltage is equal to the input voltage. NJM2387 ELECTRICAL CHARACTERISTICS (VIN=15V, VO=10V, Io=0.5A, R1=1k, CIN=0.33F, Co=22F, Ta=25C) Measurement is to be conducted is pulse testing. PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Input Voltage VIN 3.8 35 V Output Voltage VOUT 1.5 20 V Reference Voltage Vref 1.235 1.26 1.285 V Line Regulation 0.04 0.16 %/V Vo/VIN VIN=VO+1V VO+17V Load Regulation 0.2 1.4 %/A Vo/Io VIN=VO+2V,Io=0A 1.0A Average Temperature Vo/T Tj=0 +125C 0.02 %/C Coefficient of Output Voltage Quiescent Current IQ Io=0A 5 mA Dropout Voltage Io=0.5A 0.2 0.5 V VI-O Vin=Vo+2V, ein=0.5Vrms Ripple Rejection RR 52 65 dB ein=0.5Vrms, f=120Hz ON Control Voltage VCONT(ON) 2.0(*2) V OFF Control Voltage VCONT(OFF) 0.4 V ON Control Current VC=2.7V 20 ICONT(ON) A OFF Control Current -20 ICONT(OFF) VC=0.4V A (*2): When ON/OFF CONTROL Terminal is open, Output Voltage is ON. POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2387DL2 (Topr=-40~+85C,Tj=+150C,PD=10W(TC25C),PD=1W(Ta25C)) 12 ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage Control Voltage Adjust Terminal Voltage Output Current Power Dissipation PD(W) 10 8 6 4 2 0 -50 -25 0 25 HS=5C/W HS=10C/W HS=20C/W Without Heat Sink Infinuit Heat Sink 50 75 100 Ambient Temperature Ta(C) -2- Ver.2004-12-22 NJM2387/89 TEST CIRCUIT VIN NJM2387 GND Control VOUT R2 VADJ + A 22F Io VIN 0.33F + IQ A A Ic R1 Vc 1k V Vo RL Vo = Vref x (1 + R2/R1) TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN VIN VOUT V OUT + 0.33 F NJM2387 R2 + 22F CONTROL GND VADJ R1 1k Connect control terminal to VIN terminal or open. 2 In use of ON/OFF CONTROL: VIN VIN VOUT V OUT + 0.33 F NJM2387 R2 + 22 F RC CONTROL GND VADJ R1 1k State of control terminal: *"H" or "open" output is enabled. *"L" output is disabled. Ver.2004-12-22 -3- NJM2387/89 NJM2389 ELECTRICAL CHARACTERISTICS (VIN=15V, VO=10V, Io=0.5A, R1=1k, CIN=0.33F, Co=22F, Ta=25C) Measurement is to be conducted is pulse testing. PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Input Voltage VIN 3.8 35 V Output Voltage VOUT 1.5 20 V Reference Voltage Vref 1.235 1.26 1.285 V Line Regulation 0.04 0.16 %/V Vo/VIN VIN=VO+1V VO+17V Load Regulation 0.2 1.4 %/A Vo/Io VIN=VO+2V,Io=0A 1.0A Average Temperature Vo/T Tj=0 +125C 0.02 %/C Coefficient of Output Voltage Quiescent Current IQ Io=0A 5 mA Dropout Voltage Io=0.5A 0.2 0.5 V VI-O Vin=Vo+2V, ein=0.5Vrms Ripple Rejection RR 52 65 dB ein=0.5Vrms, f=120Hz THERMAL CHARACTERISTICS Thermal Resistance Junction-to-Ambient Temperature Junction to case ja jc 60 5 C/W POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2389F (Topr=-40~+85C,Tj=+150C,PD=18W(TC<50C)) 20 18 16 14 12 10 8 6 4 2 0 -50 Power Dissipation PD(W) Infinuit Heat Sink Without Heat Sink -25 0 25 50 75 100 Ambient Temperature Ta(C) -4- Ver.2004-12-22 NJM2387/89 TEST CIRCUIT VIN NJM2389 GND VOUT R2 VADJ + A V 22F Io VIN 0.33F + IQ A Vref V Vo RL R1 1k Vo = Vref x (1 + R2/R1) Ver.2004-12-22 -5- NJM2387/89 TYPICAL CHARACTERISTICS 11 NJM2387/89_10V Output Voltage vs. Input Voltage @:Ta=25 C Co=22F o 12 o NJM2387/89_10V Output Voltage vs. Output Current @:Ta=25 C Co=22 F 10 10.5 Output Voltage : Vo(V) Output Volta ge : Vo (V) (V) 8 Io=0A 10 6 VIN=22V 4 VIN=11V VIN=35V 9.5 Io=0.5A Io=1A 9 9 9.5 10 10.5 11 N( V) Input Voltage : V I N(V) 2 0 0 0.5 1 1.5 2 2.5 Output Current : Io(A) 30 NJM2387/89_10V Ground Pin Current v.s. Output Current 1 o NJM2387/89_10V Dropout Voltage vs. Output Current @:Ta=25 C Co=22 F R1=1k R2=6.94k 25 0.8 Ground Pin Current : I GND (mA) IGND 20 Dropout Voltage:dV I-O (V) 0.6 15 0.4 10 @:Ta=25 C VIN=11V Co=22 F R1=1k R2=6.94k 0 500 1000 1500 o 5 0.2 0 0 0 500 1000 1500 Output Current : I O(mA) Output Current:Io(mA) 0 NJM2387/89_10V Control Current vs. Control Voltage @:Ta=25 oC VIN=11V Co=22 F(Ceramic) Io=500mA 12 NJM2387/89_10V Output Voltage vs. Control Voltage 10 Rc=0 -0.5 Control Current : I ( A) Cont Output Voltage : Vo (V) Vo(V (V) 8 Rc=50k 6 Cont -1 Rc=100k 4 -1.5 Rc=100k Rc=50k Rc=0 2 @:Ta=25 C Vin=11V Co=22F(Ceramic) Io=500mA o -2 0 0.5 1 1.5 2 2.5 Cont 3 3.5 0 0 0.5 1 Co nt 1.5 2 Control Voltage : V Cont(V) Control Voltage : V Co nt (V) -6- Ver.2004-12-22 NJM2387/89 TYPICAL CHARACTERISTICS 3 NJM2387/89_10V Load Regulation vs. Output Current 3000 NJM2387/89_10V Peak Output Current vs. Input Voltage 2 2500 1 Peak Output Current : IoMAX(mA) Load Regulation : dVo-Io(%/A) 2000 0 1500 -1 @:Ta=25 C Vin=12V Co=22F R1=1k R2=6.94k 0 500 1000 1500 o 1000 -2 500 @:Ta=25 C R1=1k R2=14.9k Co=22F 10 15 20 25 30 35 o -3 0 Output Current : Io(mA) Input Voltage : VIN(V) NJM2387/89_10V Quiescent Current v.s. Input Voltage 50 @:Ta=25 C Output is open. Co=22F o 500 NJM2387/89_10V Output Noise Voltage vs. Output Current @:Ta=25 C VIN=15V LPF:80kHz Co=22F o Output Noise Voltage : Vn( Vrms) 40 400 Quiescent Current : IQ (mA) 30 300 20 200 10 100 0 0 5 10 15 20 25 30 35 0 0.01 10 0.1 100 1 1000 Input Voltage : VIN(V) Output Current : Io(A) NJM2387/89_10V Ripple Rejection Ratio v.s. Frequency 100 100 NJM2387/89_10V Ripple Rejection vs. Output Current 90 90 Ripple Rejection Ratio : RR (dB) Ripple Rejection : RR (dB) 80 80 Io=0A 70 Io=0.1A Io=0.5A 50 70 60 60 50 40 @:Ta=25 C VIN=12V ein=500mVrms Co=22F 10 10 100 100 1k 1000 4 10k 10 5 100k 10 o 40 30 30 @:Ta=25 C VIN=12V ein=500mVrms f=120Hz Co=22F(Ceramic) 0.01 0.1 1 10 100 1000 o 20 20 0.001 Frequency : f (Hz) Output Current : Io(mA) Ver.2004-12-22 -7- NJM2387/89 TYPICAL CHARACTERISTICS NJM2387/89_10V Output Noise Peak Value of Spectrum vs Output Current 1000 @:Ta=25 C Co=22F V =11V IN o 0.3 NJM2387/89_10V Dropout Voltage vs. Temperature ESR=0.1 0.25 ESR=0.2 Output Noise Peak Value of Spectrum : Vn_peak(V) 800 Dropout Voltage : dV (V) I-O 0.2 600 0.15 400 ESR=0.5 0.1 200 ESR=1 0.05 @:Io=0.5A Co=22F 0.0001 0.001 0.01 0.1 1 0 -50 0 50 100 o ESR=100 0 -6 10 10 -5 150 Output Current : Io(A) Temperature : Ta ( C) 2 @:VIN=11V Io=0.5A Co=22F NJM2387/89_10V Control Voltage vs. Temperature 10.4 @:VIN=11V Io=0.5A Co=22F NJM2387/89_10V Output Voltage vs. Temperature Control Voltage :Vcont-off [V] 1.5 10.2 Output Voltage : Vo(V) -50 0 50 100 o 1 10 0.5 9.8 0 9.6 150 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) 2500 NJM2387/89_10V Output Peak Current v.s. Temperature 3 NJM2387/89_10V Quiescent Current vs. Input Voltage Output Peak Current : Io_peak (mA) 2000 2.5 Quiescent Current : IQ (mA) 2 1500 1.5 1000 1 500 @:VIN=11V Co=22F 0 -50 0 50 100 o 0.5 @:VIN=11V Output is open. Co=22F 0 150 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) -8- Ver.2004-12-22 NJM2387/89 TYPICAL CHARACTERISTICS 0.1 NJM2387/89_10V Line Regulation vs. Temperature @:VIN=11-27V Io=0.5A Co=22F 1 NJM2387/89_10V Load Regulation vs. Temperature @:VIN=12V Io=0-1A Co=22F Line Regulation : dVo/dIo(%/V) Road Regulation : dVo/dIo(%/A) 0.05 0.5 0 0 -0.05 -0.5 -0.1 -50 0 50 Temperature : Ta ( C) o 100 150 -1 -50 0 50 100 o 150 Temperature : Ta ( C) 12 @:VIN=11V Io=0.5A Co=22F 10 NJM2387/89_10V Output Voltage vs. Temperature 500 NJM2387/89_10V Short Circuit Current vs. Temperature @: VIN=11V Co=22F Output is short to ground. 8 Short Circuit Current : Isc (mA) -50 0 50 100 o 400 Output Voltage : Vo(V) 300 6 200 4 2 100 0 150 200 0 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) NJM2387/89_10V ON/OFF Transient Response without Load 16 14 12 Output Voltage : Vo [V] 10 Output Voltage 8 6 4 2 0 0 1 2 3 Time : t [S] 4 5 @:Ta=25oC VDD=11V Co=22F Io=0mA -20 -30 -40 -50 -60 20 10 0 -10 16 14 12 Output Voltage : Vo [V] 10 NJM2387/89_10V ON/OFF Transient Response 20 10 0 -10 Output Voltage 8 6 4 2 0 0 4 8 12 Time : t [mS] 16 20 @:Ta=25oC VDD=11V Io=500mA -20 -30 -40 -50 -60 Control Voltage Control Voltage Control Voltage : Vo [V] Ver.2004-12-22 Control Voltage : Vo [V] -9- NJM2387/89 TYPICAL CHARACTERISTICS NJM2387/89_10V Input Transient Response 10.25 10.2 10.15 Output Voltage : Vo [V] 10.1 10.05 10 9.95 9.9 9.85 0 40 80 120 Time : t [uS] 160 200 Output Voltage o NJM2387/89_10V Load Transient Response 14 12 10.5 10.4 700 600 500 400 300 Output Voltage 200 100 0 -100 0 40 80 120 Time : t [uS] 160 200 Input Voltage Input Voltage : VIN [V] 10 8 6 4 @:Ta=25 C VDD=11V Co=22F Io=500mA 2 0 -2 10.3 Output Voltage : Vo [V] 10.2 10.1 10 9.9 9.8 9.7 @:Ta=25 C VDD=11V Co=22F Io=450mA o [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. - 10 - Ver.2004-12-22 Output Current : Io [mA] Output Current |
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