NJM2819A LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2819A is a low dropout voltage regulator with ON/OFF control. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. It delivers up to 7V/2A output power with the maximum input voltage of 10V. The NJM2819A is suitable for audio/video and digital applications. PACKAGE OUTLINE NJM2819ADL3 FEATURES High Ripple Rejection 65dB typ. (f=1kHz,3V Version) Output Noise Voltage Vno=42µVrms typ. (Vo=3V Version) Output capacitor with 4.7µF ceramic capacitor (Vo≥2.1V) Output Current Io(max.)=2.0A High Precision Output Vo ±1.0% Low Dropout Voltage 0.1V typ. (Io=1.0A, 3.0V Version) ON/OFF Control Internal Short Circuit Current Limit Internal Thermal Overload Protection Package Outline TO-252-5 PIN CONFIGURATION 3 123 45 1. VIN 2. CONTROL 3. Vo 4. N.C. 5. GND NJM2819ADL3 EQUIVALENT CIRCUIT VOUT VIN Current Limit CONTROL Bandgap Reference Thermal Protection GND Ver.2010-02-08 -1- NJM2819A OUTPUT VOLTAGE RANK LIST Device Name VOUT NJM2819ADL3-18 1.8V NJM2819ADL3-21 2.1V NJM2819ADL3-03 3.0V NJM2819ADL3-33 3.3V NJM2819ADL3-05 5.0V NJM2819ADL3-52 5.2V NJM2819ADL3-07 7.0V Output voltage options available : 1.8 ~ 7.0V ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage Control Voltage Power Dissipation Operating Temperature Storage Temperature VIN VCONT PD Topr Tstg RATINGS VO > 6.0V: +10 5.0V < VO ≤ 6.0V: +9V VO ≤ 5.0V: +8 VO > 6.0V: +10 5.0V < VO ≤ 6.0V: +9V VO ≤ 5.0V: +8 1190(*1) 3125(*2) -40 ∼ +85 -40 ∼ +150 (Ta=25°C) UNIT V V mW °C °C (*1) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 2Layers, copper area 100mm2) (*2) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 4Layers, copper area 100mm2) (4Layers inner foil : 74.2 x 74.2mm Applying a thermal beer hall to a board based on JEDEC standard JESD51-5) OPERATING VOLTAGE VIN=VO + ∆VI-O ~ 9V (In case of VO > 6.0V version) VIN=VO + ∆VI-O ~ 8V (In case of 5.0V < VO ≤ 6.0V version) VIN=VO + ∆VI-O ~ 7V (In case of 2.1V ≤ VO ≤ 5.0V version) VIN=2.3V ~ 7V (In case of VO < 2.1V version) -2- Ver.2010-02-08 NJM2819A ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=4.7µF, Co=4.7µF(Co=10µF : 1.8V≤Vo<2.1V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. Output Voltage Vo Io=100mA -1.0% +1.0% Quiescent Current IQ Io=0mA, exclude ICONT 500 800 Quiescent Current IQ (OFF) VCONT=0V 1 at Control OFF Output Current Io Vo - 0.3V 2 3 VO>5.0V : VIN=Vo+1V ∼ 9V, 5.0V < VO ≤ 6.0V : VIN=Vo+1V ∼ 8V, 0.1 Line Regulation ∆Vo/∆VIN VO≤5.0V : VIN=Vo+1V ∼ 7V, Io=100mA Load Regulation 0.05 0.4 ∆Vo/∆Io Io=0 ∼ 2.0A 0.14 0.25 2.1V ≤ Vo < 2.5V 0.11 0.20 2.5V ≤ Vo < 2.8V Dropout Voltage(*2) Io=1.0A ∆VI -O 0.10 0.18 2.8V ≤ Vo < 3.4V 0.09 0.16 3.4V ≤ Vo ≤ 7.0V ein=200mVrms,f=1kHz, Io=100mA, Ripple Rejection RR 65 Vo=3V Version Average Temperature ∆Vo/∆Ta Ta=0 ∼ 85°C, Io=100mA ± 50 Coefficient of Output Voltage f=10Hz ∼ 80kHz, Io=100mA, Output Noise Voltage VNO 42 Vo=3V Version Control Current ICONT VCONT=1.6V 3 12 Control Voltage for ON-state VCONT(ON) 1.6 Control Voltage for OFF-state VCONT(OFF) 0.6 Io≤1.5A, Vo×0.96 2.3 Minimum Input Voltage VIN (MIN.) Vo<2.1V 1.5A<Io≤2.0A, Vo×0.96 2.4 (*2): The output voltage excludes under 2.1V. 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.2010-02-08 -3- UNIT V µA µA A %/V %/A V dB ppm/°C µVrms µA V V V V NJM2819A POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2819ADL3 PowerDissipation (Topr=-40~+85°C,Tj=150°C) Power Dissipation PD(mW) 3500 3000 on 4 layers board 2500 2000 1500 on 2 layers board 1000 500 0 -50 -25 0 25 50 75 100 Temperature : Ta(°C) TEST CIRCUIT A IIN VIN VOUT *3 VIN 4.7µF A V VCONT ICONT NJM2819A 4.7µF IOUT V VOU (Ceramic) CONTROL GND *3 : 1.8 ≤Vo<2.6V version : Co=10µF (Ceramic) -4- Ver.2010-02-08 NJM2819A TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN VIN VOUT VOUT *4 4.7µF NJM2819A 4.7µF R CONTROL GND *4 : 1.8 ≤Vo<2.6V version : Co=10µF Connect control terminal to VIN terminal 2 In use of ON/OFF CONTROL: VIN VIN VOUT VOUT *4 NJM2819A 4.7µF 4.7µF R CONTROL GND *4 : 1.8 ≤Vo<2.6V version : 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. Ver.2010-02-08 -5- NJM2819A 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 4.7µF 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) influence stability of the regulator. If use a smaller Co, it 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. This product is designed to work with any capacitor including a low ESR capacitor for the Co; however, refer "Equivalent Series Resistance vs. Output Current" and choose suitable capacitor. When distance from an IC to load is long, an IC may cause malfunction by wiring capacity and an L ingredient Please use it after having evaluated it enough. -6- Ver.2010-02-08 NJM2819A TYPICAL CHARACTERISTICS NJM2819A_3.0V Output Volatage vs.Output Current NJM2819A_3.0V Output Voltage vs.Input Voltage 4 3.4 @:Ta=25°C Co=4.7uF(Ceramic) 3.5 3.3 Output Voltage : Vo (V) Output Voltage : Vo (V) 3 3.2 3.1 Io=0A 3 Io=500mA 2.9 2.8 2.5 2 1.5 1 @:Ta=25°C VIN=4.0V Co=4.7uF(Ceramic) 0.5 Io=2000mA 2.7 0 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 0 1 2 Input Voltage : VIN (V) 4 5 6 2500 3000 NJM2819A_3.0V Dropout Voltage vs.Output Current NJM2819A_3.0V Ground Pin Current vs.Output Current 5 0.40 @:Ta=25°C VIN=4.0V Co=4.7uF(Ceramic) 0.35 4 D ropout Voltage : dVI_O (V) Ground Pin Current : I GND (mA 3 Output Current : Io (A) 3 2 1 @:Ta=25°C Vin=2.5V Co=2.2uF(Ceramic) 0.30 0.25 0.20 0.15 0.10 0.05 0 0 500 1000 1500 2000 2500 3000 0.00 0 500 1000 Output Currnet : Io (mA) 1500 2000 Output Current : Io (mA) NJM2819A_3.0V Control Current vs.Control Voltage NJM2819A_3.0V Output Voltage vs. Control Voltage 4 50 @:Ta=25°C VIN=4.0V Co=4.7uF(Ceramic) Io=500mA 40 @:Ta=25°C VIN=4.0V Co=4.7uF(Ceramic) Io=500mA 3.5 Output Voltage (V) Control Current (uA) 3 30 20 Rc=100kΩ 2 Rc=100kΩ 1.5 Rc=50kΩ Rc=50kΩ 1 Rc=0Ω 10 2.5 Rc=0Ω 0.5 0 0 0 0.5 1 1.5 2 2.5 Control Voltage (V) Ver.2010-02-08 3 3.5 4 0 0.5 1 1.5 2 2.5 Control Voltage (V) -7- NJM2819A NJM2819A_3.0V Load Regulation vs.Output Current NJM2819A_3.0V Peak Output Current vs.Input Voltage 6 Peak Output Current : Io MAX (mA) Load Regulation : dVo/dIo (mV) 0 -10 -20 -30 @:Ta=25°C Vin=2.5V Co=4.7uF(Ceramic) -40 -50 5 4 3 2 1 @:Ta=25°C Co=4.7uF(Ceramic) 0 0 1000 2000 3000 4000 4 6 8 Output Current : Io (mA) 100 2000 Quiescent Current:IQ (µA) O utput Nois e Voltage :Vn (µVrms ) @:Ta=25°C Output is open Co=4.7uF(Ceramic) Inculding Icont 1000 500 80 2 4 6 8 10 @Ta=25°C VIN=4.0V Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 60 40 LPH:80kHz 20 0 0.001 0 0 12 0.01 0.1 Io=0A Io=100mA 50 20 10 0 0.01 10000 Io=2000mA f=1kHz 70 60 50 40 30 20 @:Ta=25°C VIN=4.0V ein=200mVrms Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) f=10kHz 10 0 0.1 1 Frequency :f (kHz) -8- Ripple Rejection :RR(dB Ripple Rejection :RR(dB) 80 60 30 1000 90 80 @:Ta=25°C VIN=4.0V ein=200mVrms Cin=4.7µF Co=4.7µF 100 100 100 40 10 NJM2819A_3.0V Ripple Rejection vs.Output Current NJM2819A_3.0V Ripple Rejection Ratio vs.Frequency 70 1 Output Current :Io (mA) Input Voltage:VIN (V) 90 12 NJM2819A_3.0V Output Noize Voltage vs.Output Current NJM2819A_3.0V Quiescent Current vs.Input Voltage 1500 10 Input Voltage : VIN (V) 10 100 0.001 0.1 10 1000 Output Current :Io(mA) Ver.2010-02-08 NJM2819A NJM2819A_3.0V Equivalent Serise Resistance vs. Output Current NJM2819A_3.0V Dropout Voltage vs.Temperature @Ta=25°C VIN=4.0V Co=4.7uF(Ceramic) 0.25 @:Io=1000mA Co=4.7uF(Ceramic) Dropout Voltage : dVi-o(V) EquiValent Serise Resistance:ESR [Ω] 100 10 1 STABLE REGION 0.20 0.15 0.10 0.05 0.1 0.00 -50 0.01 0.001 0.01 0.1 1 10 100 1000 0 50 100 150 Temperature : (°C) 10000 Output Current : Io(mA) NJM2819A_3.0V Control Voltage vs.Temperature NJM2819A_3.0V Output Voltage vs.Temperature 3.05 1.60 1.40 Control Voltage :Vcont_OFF Output Voltage : Vo(V) 3.04 3.03 3.02 3.01 3.00 2.99 2.98 @:VIN=4.0V Io=100mA Co=4.7uF(Ceramic) 2.97 2.96 1.20 1.00 0.80 0.60 @:VIN=4.0V Output is Open Co=4.7uF(Ceramic) 0.40 0.20 2.95 0.00 -50 0 50 100 150 -50 0 50 100 150 Temperature : (°C) Temperature : (°C) NJM2819A_3.0V Control Current vs.Temperature NJM2819A_3.0V Quiescent Current vs.Temperature 900 12.00 Quiescent Current : I Q(uA) Control current : Icnt(uA) 800 10.00 8.00 6.00 4.00 @:VIN=4.0V Vcont=1.6V Co=4.7uF(Ceramic) 2.00 700 600 500 400 300 @:VIN=4.0V Output is Open Co=4.7uF(Ceramic) 200 100 0.00 0 -50 0 50 Temperature : (°C) Ver.2010-02-08 100 150 -50 0 50 100 150 Temperature : (°C) -9- NJM2819A NJM2819A_3.0V Short Circuit Current vs.Temperature 1000 Short Circuit Current : Isc(mA) 800 Line Regulation : dVo/dVin(mV) @:VIN=4.0V Output is short to Ground Co=4.7uF(Ceramic) 900 NJM2819A_3.0V Line Regulation vs.Temperature 0.10 700 600 500 400 300 200 100 0.08 0.06 0.04 0.02 0.00 -0.02 @:VIN=4.0-9.0V Io=100mA Co=4.7uF(Ceramic) -0.04 -0.06 -0.08 0 -50 0 50 100 -0.10 150 -50 0 Temperature : (°C) Output Peak Current : Io_peak(mA) Load Regulation : dVo/dIo(mV) 4500 @:VIN=4.0 Io=0-2000mA Co=4.7uF(Ceramic) -0.12 0 50 150 NJM2819A_3.0V Output Peak Current vs.Temperature 0.09 -50 100 Temperature : (°C) NJM2819A_3.0V Load Regulation vs.Temperature 0.30 50 100 150 Temperature : (°C) 4000 3500 3000 2500 2000 1500 @:VIN=4.0V Co=4.7uF(Ceramic) 1000 500 0 -50 0 50 100 150 Temperature : (°C) NJM2819A_3.0V Output Voltage vs.Temperature 4.00 Output Voltage : Vo(V) 3.50 3.00 2.50 2.00 1.50 @:VIN=4.0V Io=100mA Co=4.7uF(Ceramic) 1.00 0.50 0.00 -50 0 50 100 150 200 Temperature : (°C) - 10 - Ver.2010-02-08 NJM2819A 5 0 Control Voltage 4 -5 @:Ta=25°C VIN=4.0V Io=0mA Co=4.7uF(Ceramic) 2 -10 -15 1 -20 Output Voltage 0 -1 4 0 8 12 Time : t(s) 16 3.10 Output Voltage : Vo(V) 3.08 3.06 40 80 120 Time : t(ms) 160 200 Output Voltage 2 -15 -30 0 4 8 12 20 16 NJM2819A_3.0V Input Transient Response 1500 1.80 7 1000 1.75 6 -1000 0 -10 Time : t(ms) 3.00 2.94 3 -5 -1 -500 2.96 4 -30 3.02 @:Ta=25°C VIN=4.0V Io=500-1000mA Co=4.7uF(Ceramic) 0 @:Ta=25°C VIN=4.0V Io=100mA Co=4.7uF(Ceramic) -25 0 Output Voltage Control Voltage 5 0 3.04 2.98 5 -25 500 Output Current 6 -20 20 NJM2819A_3.0V Load Transient Response 10 1 -1500 -2000 -2500 Output Voltage : Vo(V) 3 7 1.70 5 Input Voltage 1.65 1.60 1.55 Output Voltage 4 @:Ta=25°C VIN=4.0V Io=100mA Cin=4.7uF(Ceramic) Co=4.7uF(Ceramic) 3 2 1.50 1 1.45 0 1.40 -1 0 40 80 120 160 200 Time : t(µs) [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.2010-02-08 - 11 - control Voltage : Vcont(V) 5 Output Voltage : Vo(V) 6 control Voltage : Vcont(V) 10 Output Current : Io(mA) Output Voltage : Vo(V) 7 control Voltage : Vcont(V) NJM2819A_3.0V ON/OFF Transient Response NJM2819A_3.0V ON/OFF Transient Response without Load