NJM2845/46 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2845/46 is low dropout voltage regulator. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. NJM2845 is 3 terminal type and NJM2846 is ON/OFF control built in type. These product can be selected according to the applications. PACKAGE OUTLINE NJM2845DL1 NJM2846DL3 FEATURES High Ripple Rejection 75dB typ. (f=1kHz,3V Version) Output Noise Voltage Vno=45µVrms typ. (Vo=3V Version) Output capacitor with 2.2µF ceramic capacitor (Vo≥2.6V) Output Current Io(max.)=800mA High Precision Output Vo ±1.0% Low Dropout Voltage 0.18V typ. (Io=500mA) ON/OFF Control (NJM2846) Internal Short Circuit Current Limit Internal Thermal Overload Protection Bipolar Technology Package Outline TO-252-3 (NJM2845DL1), TO-252-5 (NJM2846DL3) PIN CONFIGURATION 2 1.VIN 2.GND 3.VOUT 1 3 3 123 45 NJM2845DL1 1.CONTROL 2.VIN 3.GND 4.Vo 5.NC NJM2846DL3 EQUIVALENT CIRCUIT VIN VOUT Thermal Protection VIN Control GND NJM2845DL1 Ver.2008-02-06 Thermal Protection Bandgap Reference Bandgap Reference GND VOUT NJM2846DL3 -1- NJM2845/46 OUTPUT VOLTAGE Device Name VOUT NJM284*DL*-15 1.5V NJM284*DL*-18 1.8V NJM284*DL-*02 2.0V NJM284*DL*-22 2.2V NJM284*DL*-23 2.3V NJM284*DL*-25 2.5V NJM284*DL*-03 3.0V NJM284*DL*-33 3.3V NJM284*DL*-04 4.0V NJM284*DL*-05 5.0V Output voltage options available : 1.5 ~ 5.0V (0.1V step) ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD (Ta=25°C) RATINGS UNIT +14 V +14(*1) V 10(Tc≤25°C) W 1.0(Ta≤25°C) Operating Topr -40 ∼ +85 °C Temperature Storage Tstg -40 ∼ +150 °C Temperature (*1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. Operating voltage VIN=+2.5V(In case of Vo<2.3V) ~ +(Vo+9V) NJM2845 ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33µF ,Co=2.2µF(1.7V<Vo≤2.6V:Co=4.7µF, Vo≤1.7V: Co=10µF), Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Output Voltage Vo Io=30mA -1.0% Quiescent Current IQ Io=0mA 400 Output Current Io Vo - 0.3V 800 1050 Line Regulation ∆Vo/∆VIN VIN=Vo+1V ∼ Vo+6V, Io=30mA Load Regulation ∆Vo/∆Io Io=0 ∼ 800mA Io=500mA 0.18 Dropout Voltage(*2) ∆VI -O ein=200mVrms, f=1kHz, Io=10mA, Ripple Rejection RR 75 Vo=3V Version Average Temperature Coefficient of Output ∆Vo/∆Ta Ta=0 ∼ 85°C, Io=10mA ± 50 Voltage f=10Hz ∼ 80kHz, Io=10mA, Output Noise Voltage VNO 45 Vo=3V Version (*2): The output voltage excludes under 2.3V. 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. -2- MAX. +1.0% 600 0.10 0.004 0.28 UNIT V µA mA %/V %/mA V - dB - ppm/°C - µVrms Ver.2008-02-06 NJM2845/46 POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2845DL1 (Topr=-40~+85°C,Tj=+150°C,PD=10W(TC≤25°C),PD=1W(Ta≤25°C)) Power Dissipation PD(W) 12 10 ∞ Heat Sink 8 θHS=5°C/W 6 θHS=10°C/W θHS=20°C/W 4 2 Without Heat Sink 0 -50 -25 0 25 50 75 100 Ambient Temperature Ta(°C) TEST CIRCUIT A VIN IIN VIN 0.33µF VOUT NJM2845 2.2µF *3 IOUT V VOU (ceramic) GND *3 1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF(ceramic) TYPICAL APPLICATION VIN VIN 0.33µF VOUT NJM2845 VOUT 2.2µF *4 GND *4 Ver.2008-02-06 1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF -3- NJM2845/46 NJM2846 ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33µF, Co=2.2µF(1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF), Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Output Voltage Vo Io=30mA -1.0% Quiescent Current IQ Io=0mA 400 Quiescent Current VCONT=0V IQ (OFF) at Control OFF Line Regulation Io Vo - 0.3V 800 1050 Line Regulation ∆Vo/∆VIN VIN=Vo+1V ∼ Vo+6V, Io=30mA Load Regulation ∆Vo/∆Io Io=0 ∼ 800mA Io=500mA 0.18 Dropout Voltage(*5) ∆VI -O ein=200mVrms, f=1kHz, Io=10mA, Ripple Rejection RR 75 Vo=3V Version Average Temperature Coefficient of Output ∆Vo/∆Ta Ta=0 ∼ 85°C, Io=10mA ± 50 Voltage f=10Hz ∼ 80kHz, Io=10mA, Output Noise Voltage VNO 45 Vo=3V Version Control Current ICONT VCONT=1.6V, Io=0mA 3 Control Voltage for ON-state VCONT(ON) 1.6 Control Voltage for OFF-state VCONT(OFF) - MAX. +1.0% 600 UNIT V µA 100 nA 0.10 0.004 0.28 mA %/V %/mA V - dB - ppm/°C - µVrms 12 0.6 µA V V (*5): The output voltage excludes under 2.3V. 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. POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2846DL3 (Topr=-40~+85°C,Tj=+150°C,PD=10W(TC≤25°C),PD=1W(Ta≤25°C)) Power Dissipation PD(W) 12 10 ∞ Heat Sink 8 θHS=5°C/W 6 θHS=10°C/W θHS=20°C/W 4 2 Without Heat Sink 0 -50 -25 0 25 50 75 100 Ambient Temperature Ta(°C) -4- Ver.2008-02-06 NJM2845/46 TEST CIRCUIT A IIN VIN VIN 0.33µF A V VCONT *6 Ver.2008-02-06 ICONT VOUT NJM2846 2.2µF *6 IOUT V VOU (ceramic) CONTROL GND 1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF -5- NJM2845/46 TYPICAL APPLICATIONS 1 In the case where ON/OFF Control is not required: VIN VIN 0.33µF VOUT NJM2846 VOUT 2.2µF *7 R (0〜300kΩ) CONTROL GND *7 1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF Connect control terminal to VIN terminal 2 In use of ON/OFF CONTROL: VIN VIN VOUT NJM2846 0.33µF VOUT 2.2µF *7 R CONTROL GND *7 1.7V<Vo≤2.6V version: Co=4.7µF, Vo≤1.7V: Co=10µF State of control terminal: •“H”→ output is enabled. •“L” or “open” → output is disabled. In the case of using a resistance "R" between VIN and control. The current flow into the control terminal while the IC is ON state (ICONT) can be reduced when a pull up resistance "R" is inserted between VIN and the control terminal. The minimum control voltage for ON state (VCONT (ON)) is increased due to the voltage drop caused by ICONT and the resistance "R". The ICONT 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 VCONT (ON) over the required temperature range. -6- Ver.2008-02-06 NJM2845/46 Input Capacitance CIN Input capacitance CIN is required to prevent oscillation and reduce power supply ripple for applications with high power supply impedance or a long power supply line. Use the CIN value of 0.33µF greater to avoid the problem. CIN should connect between GND and VIN as short as possible. Output Capacitance CO Output capacitor (Co) is required for a phase compensation of the internal error amplifier. The capacitance and the equivalent series resistance (ESR) influences stability of the regulator. This product is designed to work with a low ESR capacitor for the Co; however, use of recommended capacitance or greater value is essential for stable operation. Use of a smaller Co may cause excess output noise or oscillation of the regulator due to lack of the phase compensation. Therefore, use Co with the recommended capacitance or greater value and connect between Vo terminal and GND terminal with minimal wiring. The recommended capacitance depends on the output voltage. Low voltage regulator requires greater value of the Co. Thus, check the recommended capacitance for each output voltage. Use of a greater Co reduces output noise and ripple output, and also improves transient response of the output voltage against rapid load change. Ver.2008-02-06 -7- NJM2845/46 TYPICAL CHARACTERISTICS (NJM2845) NJM2845_3.0V Output Voltage vs. Input Voltage 3.3 NJM2845_3.0V Output Voltage vs. Output Current 4 o @:Ta=25 C Co=2.2µF(Ceramic) 3.5 3.2 Output Voltage : Vo(V) Output Voltage : Vo(V) 3 3.1 Io=0A 3 2.9 2.5 2 1.5 1 Io=200mA 2.8 o @:Ta=25 C V IN=4V Co=2.2µF(Ceramic) 0.5 Io=500mA 2.7 2.7 2.8 2.9 3 3.1 0 3.2 3.3 0 500 NJM2845_3.0V Ground Pin Current vs. Output Current 35 1000 1500 2000 Output Current : Io(mA) Input Voltage : VIN(V) NJM2845_3V Dropout Voltage vs. Output Current 0.35 o @:Ta=25 C Co=2.2µF(Ceramic) 0.3 25 Dropout Voltage:dVI-O (V) Ground Pin Current : IGND (mA) 30 20 15 10 5 0.25 0.2 0.15 0.1 0.05 @:Ta=25 oC V IN=4.0V Co=2.2µF(Ceramic) 0 0 0 200 400 600 800 0 1000 200 NJM2845_3.0V Load Regulation vs. Output Current 0 400 600 800 1000 Output Current:Io(mA) Output Current : IO(mA) NJM2845_3.0V Peak Output Current vs. Input Voltage 2500 2000 -20 Peak Output Current : IoMAX(mA) Load Regulation : dVo/dIo(mV) -10 -30 -40 -50 -60 @:Ta=25 oC V IN=4.0V Co=2.2µF(Ceramic) -70 200 500 0 400 600 Output Current : Io(m A) -8- 1000 @:Ta=25oC Co=2.2µF(Ceramic) -80 0 1500 800 1000 4 6 8 10 12 14 Input Voltage : VIN(V) Ver.2008-02-06 NJM2845/46 TYPICAL CHARACTERISTICS (NJM2845) NJM2845_3.0V Quiescent Current vs. Input Voltage 2500 NJM2845_3.0V Output Noise Voltage vs. Output Current 100 @:Ta=25oC V IN=4.0V LPF:80kHz Co=2.2µF(ceramic) o @:Ta=25 C Output is open. Co=2.2µF(Ceramic) Output Noise Voltage : Vn(µ Vrms) Quiescent Current : IQ (µA) 2000 1500 1000 500 5 10 60 40 20 0 0.001 0 0 80 15 0.01 Input Voltage : VIN(V) NJM2845_3.0V Ripple Rejection Ratio vs. Frequency 100 Io=10mA Io=0mA 90 80 70 60 Io=30mA Io=100mA 50 40 20 10 10 100 1000 f=1kHz 70 f=10kHz 60 50 40 o 30 1k 1000 100 100 100k 105 4 10k 10 Frequency : f (Hz) @:Ta=25 C V IN=4V ein=200mVrms Co=2.2µF(Ceramic) 20 0.001 0.01 0.1 1 10 100 1000 Output Current : Io(mA) NJM2845_3.0V Equivalent Serise Resistance vs. Output Current 100 Equivalent Serise Resistance : ESR(Ω) 10 80 o @:Ta=25 C V IN=4V ein=200mVrms Co=2.2µF(Ceramic) 30 1 NJM2845_3V Ripple Rejection vs. Output Current 100 Ripple Rejection : RR (dB) Ripple Rejection Ratio : RR (dB) 90 0.1 Output Current : Io(mA) @:Ta=25oC Co=2.2µF(Ceramic) V IN=4.0V 10 STABLE REGION 1 0.1 0.02 0.001 0.01 0.1 1 10 100 103 Output Current : Io(m A) Ver.2008-02-06 -9- NJM2845/46 TYPICAL CHARACTERISTICS (NJM2845) NJM2845_3.0V Dropout Voltage vs. Temperature 0.4 Io=500mA Co=2.2µF(Ceramic) 0.35 3.05 Output Voltage : Vo(V) 0.3 Dropout Voltage:dVI-O (V) NJM2845_3.0V Output Voltage vs. Temperature 3.1 0.25 0.2 0.15 0.1 3 2.95 @:VIN=4.0V Io=30mA Co=2.2µF(Ceramic) 0.05 2.9 0 -50 0 50 100 -50 150 0 NJM2845_3.0V Quiescent Current v.s. Input Voltage 150 NJM2845_3.0V Short Circuit Current v.s. Temperature 1000 600 @:VIN=4.0V Output is open. Co=2.2µF(Ceramic) 500 100 Temperature : Ta ( C) Temperature : Ta ( C) @:VIN=4.0V Co=2.2µF(Ceramic) Output is short to ground. 800 Short Circuit Current : Isc (mA) Quiescent Current : IQ (mA) 50 o o 400 300 200 100 600 400 200 0 0 -50 0 50 100 -50 150 0 50 o NJM2845_3.0V Line Regulation vs. Temperature 0.1 100 150 200 Temperature : Ta (oC) Temperature : Ta ( C) 0.03 NJM2845_3.0V Load Regulation vs. Temperature @:V IN=4.0V Io=0-800mA Co=2.2µF(Ceramic) Load Regulation : dVo/dIo(%/mA) Line Regulation : dVo/dIo(%/V) 0.025 0.05 0 -0.05 -0.1 @:VIN=4.0-9.0V Io=30mA Co=2.2µF(Ceramic) -50 0 50 o Temperature : Ta ( C) - 10 - 100 150 0.02 0.015 0.01 0.005 0 -50 0 50 o 100 150 Temperature : Ta ( C) Ver.2008-02-06 NJM2845/46 TYPICAL CHARACTERISTICS (NJM2845) NJM2845_3.0V Peak Output Current vs. Input Voltage 2000 NJM2845_3.0V Output Voltage vs. Temperature 4 3.5 3 Output Voltage : Vo(V) 1000 500 2.5 2 1.5 1 0.5 @:Ta=25 oC Co=2.2µF(Ceramic) @:VIN=4.0V Io=30mA Co=2.2µF(Ceramic) 0 0 -50 0 50 100 -50 150 0 NJM2845_3V Line Transient Response 3.08 6 3.25 5 3.2 800 Output Current 3.04 3 Output Voltage 3.02 2 3 1 o 0 @:Ta=25 C VIN=4V Co=2.2µF Io=30mA 3.15 700 3.1 600 3.05 500 3 400 Output Voltage 2.95 300 o 2.94 Ver.2008-02-06 Output Voltage : Vo [V] 4 Input Voltage : VIN [V] Output Voltage : Vo [V] 3.06 40 200 900 Input Voltage 0 150 NJM2845_3V Load Transient Response 3.1 2.96 100 Temperature : Ta ( C) Temperature : Ta ( C) 2.98 50 o o Output Current : Io [mA] Peak Output Current : IoMAX(mA) 1500 80 120 Time : t [µs] 160 -1 2.9 -2 200 2.85 @:Ta=25 C VIN=4V Co=2.2µF 0 40 80 120 Time : t [µs] 160 200 100 200 - 11 - NJM2845/46 TYPICAL CHARACTERISTICS (NJM2846) NJM2846_3.0V Output Voltage vs. Input Voltage 3.3 NJM2846_3.0V Output Voltage vs. Output Current 4 o @:Ta=25 C Co=2.2µF(Ceramic) @:Ta=25oC V IN=4.0V Co=2.2µF(Ceramic) 3.5 3.2 Output Voltage : Vo(V) Output Voltage : Vo(V) 3 3.1 Io=0A 3 2.9 2.5 2 1.5 1 Io=200mA 2.8 0.5 Io=500mA 2.7 2.7 2.8 2.9 3 3.1 3.2 0 3.3 0 500 Input Voltage : VIN(V) 1000 1500 2000 Output Current : Io(mA) NJM2846_3.0V Ground Pin Current v.s. Output Current 35 NJM2846_3.0V Dropout Voltage vs. Output Current 0.35 o 30 0.3 25 0.25 Dropout Voltage:dVI-O (V) Ground Pin Current : IGND (mA) @:Ta=25 C Co=2.2µF(Ceramic) 20 15 10 o 5 0.2 0.15 0.1 0.05 @:Ta=25 C VIN=4.0V Co=2.2µF(Ceramic) 0 0 0 200 400 600 800 0 1000 200 400 NJM2846_3.0V Control Current vs. Control Voltage 60 800 1000 NJM2846_3.0V Output Voltage vs. Control Voltage 3.5 @:Ta=25oC V IN=4.0V Co=2.2µF(Ceramic) Io=30mA 50 600 Output Current:Io(mA) Output Current : IO(mA) 3 Output Voltage : Vo(V) 40 Control Current : I Cont (µA) Rc=0Ω 2.5 30 Rc=0Ω 20 Rc=100kΩ Rc=50kΩ 1.5 Rc=100kΩ 1 o 10 @:Ta=25 C V IN=4.0V Co=2.2µF(Ceramic) Io=30mA 0.5 0 0 0 0.5 1 1.5 2 2.5 Control Voltage : V 3 (V) Cont - 12 - Rc=50kΩ 2 3.5 4 0 0.5 1 1.5 2 Control Voltage : V 2.5 3 (V) Cont Ver.2008-02-06 NJM2845/46 TYPICAL CHARACTERISTICS (NJM2846) NJM2846_3.0V Load Regulation vs. Output Current 0 NJM2846_3.0V Peak Output Current vs. Input Voltage 2500 -10 Peak Output Current : IoMAX(mA) Load Regulation : dVo/dIo(mV) 2000 -20 -30 -40 -50 -60 1500 1000 500 @:Ta=25 oC VIN=4.0V Co=2.2µF(Ceramic) -70 o @:Ta=25 C Co=2.2µF(Ceramic) -80 0 0 200 400 600 800 1000 4 6 NJM2846_3.0V Quiescent Current v.s. Input Voltage @:Ta=25oC Output is open. Co=2.2µF(Ceramic) including Icont Output Noise Voltage : Vn(µVrms) Quiescent Current : IQ (µA) 1000 500 10 80 60 40 20 15 0.01 NJM2846_3.0V Ripple Rejection Ratio v.s. Frequency Io=0mA 100 1000 80 Ripple Rejection : RR (dB) Ripple Rejection : RR (dB) 10 f=10kHz 90 Io=10mA 80 70 60 Io=30mA Io=100mA 50 40 @:Ta=25 C VIN=4.0V ein=200mVrms Co=2.2µF(Ceramic) 30 10 100 60 50 40 30 1k Frequency : f (Hz) 10k 100k f=1kHz 70 o Ver.2008-02-06 1 NJM2846_3.0V Ripple Rejection vs. Output Current 100 100 20 0.1 Output Current : Io(mA) Input Voltage : VIN(V) 90 14 @:Ta=25 C V IN=4.0V LPF:80kHz Co=2.2µF(ceramic) 0 0.001 0 5 12 o 1500 0 10 NJM2846_3.0V Output Noise Voltage vs. Output Current 100 2500 2000 8 Input Voltage : VIN(V) Output Current : Io(mA) @:Ta=25oC V IN=4.0V ein=200mVrms Co=2.2µF(Ceramic) 20 0.001 0.01 0.1 1 10 100 1000 Output Current : Io(mA) - 13 - NJM2845/46 TYPICAL CHARACTERISTICS (NJM2846) NJM2846_3.0V Equivalent Serise Resistance vs. Output Current 100 Equivalent Serise Resistance : ESR(Ω ) @:Ta=25oC V IN=4.0V Co=2.2µF 10 STABLE REGION 1 0.1 0.02 0.001 0.01 0.1 1 10 3 100 10 Output Current : Io(m A) NJM2846_3.0V Dropout Voltage vs. Output Current 0.4 Io=500mA Co=2.2µF(Ceramic) 0.35 3.05 Output Voltage : Vo(V) 0.3 Dropout Voltage:dVI-O (V) NJM2846_3.0V Output Voltage vs. Temperature 3.1 0.25 0.2 0.15 0.1 3 2.95 @:VIN=4.0V Io=30mA Co=2.2µF(Ceramic) 0.05 2.9 0 -50 0 50 100 -50 150 0 NJM2846_3.0V Control Voltage v.s. Temperature 150 NJM2846_3.0V Control Current v.s. Temperature 10 2 @:V IN=4.0V Io=30mA Co=2.2µF(Ceramic) @:VIN=4V Output is open Co=2.2µF(Ceramic) V CONT=1.6V 8 1.5 Control Current : ICONT [ µA] Control Voltage :Vcont-off [V] 100 Temperature : Ta ( C) Temperature : Ta ( C) 1 0.5 6 4 2 0 -50 0 50 100 o Temperature : Ta ( C) - 14 - 50 o o 150 0 -50 0 50 100 150 o Temperature Ta ( C) Ver.2008-02-06 NJM2845/46 TYPICAL CHARACTERISTICS (NJM2846) NJM2846_3.0V Quiescent Current v.s. Input Voltage @:VIN=4.0V Output is open. Co=2.2µF(Ceramic) 500 @:VIN=4.0V Co=2.2µF(Ceramic) Output is short to ground. 800 Short Circuit Current : Isc (mA) Quiescent Current : IQ (µ A) NJM2846_3.0V Short Circuit Current v.s. Temperature 1000 600 400 300 200 100 600 400 200 0 0 -50 0 50 100 -50 150 0 o NJM2846_3.0V Line Regulation vs. Temperature 0.1 50 100 150 Temperature : Ta (oC) Temperature : Ta ( C) NJM2846_3.0V Load Regulation vs. Temperature 0.03 @:V IN=4.0V Io=0-800mA Co=2.2µF(Ceramic) Load Regulation : dVo/dIo(%/mA) Line Regulation : dVo/dIo(%/V) 0.025 0.05 0 -0.05 -0.1 @:VIN=4.0-9.0V Io=30mA Co=2.2µF(Ceramic) -50 0 50 o 100 0.02 0.015 0.01 0.005 0 -50 150 0 Temperature : Ta ( C) NJM2846_3.0V Peak Output Current v.s. Temperature 2000 Peak Output Current: Io_peak (mA) o 100 150 NJM2846_3.0V Output Voltage vs. Temperature 4 @:VIN=4.0V Co=2.2µF(Ceramic) 3.5 3 Output Voltage : Vo(V) 1500 1000 500 2.5 2 1.5 1 0.5 0 0 -50 0 50 100 o Temperature : Ta ( C) Ver.2008-02-06 50 Temperature : Ta ( C) 150 @:VIN=4.0V Io=30mA Co=2.2µF(Ceramic) -50 0 50 100 150 200 Temperature : Ta (oC) - 15 - NJM2845/46 TYPICAL CHARACTERISTICS (NJM2846) NJM2846_3.0V ON/OFF Transient Response without Load NJM2846_3.0V ON/OFF Transient Response with Load 7 6 10 7 5 6 0 5 10 5 3 -10 2 -15 1 o @:Ta=25 C VIN=4.0V Co=2.2µF(Ceramic) Io=0mA 0 -1 0 1 2 3 Time : t [S] 4 Output Voltage 3 -10 2 -15 -20 1 -25 0 -30 -1 5 -5 4 -30 0 4 6 3.25 5 3.2 3.04 3 Output Voltage 3.02 2 3 1 o 0 @:Ta=25 C VIN=4V Co=2.2µF Io=30mA Output Voltage : Vo [V] 4 Input Voltage : VIN [V] Output Voltage : Vo [V] 12 Time : t [mS] 16 20 800 Output Current 3.06 3.15 700 3.1 600 3.05 500 3 400 Output Voltage 2.95 300 o 2.94 40 8 900 Input Voltage 0 -25 NJM2846_3V Load Transient Response 3.08 2.96 -20 o @:Ta=25 C VIN=4.0V Co=2.2µF(Ceramic) Io=30mA NJM2846_3V Line Transient Response 3.1 2.98 Control Voltage : Vo [V] Output Voltage 0 Output Current : Io [mA] Output Voltage : Vo [V] -5 4 Output Voltage : Vo [V] Control Voltage Control Voltage : Vo [V] Control Voltage 5 80 120 Time : t [µs] 160 -1 2.9 -2 200 2.85 @:Ta=25 C VIN=4V Co=2.2µF 0 40 80 120 Time : t [µs] 160 200 100 200 [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. - 16 - Ver.2008-02-06