NJM2817 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2817 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 5V/3A output power with the maximum input voltage of 8V. The NJM2817 is suitable for audio/video and digital applications. PACKAGE OUTLINE NJM2817DL3 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.)=3.0A High Precision Output Vo ±1.0% Low Dropout Voltage 0.12V typ. (Io=1.5A, 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 NJM2817DL3 EQUIVALENT CIRCUIT VOUT VIN Current Limit CONTROL Bandgap Reference Thermal Protection GND Ver.2010-07-12 -1- NJM2817 OUTPUT VOLTAGE RANK LIST Device Name VOUT NJM2817DL3-18 1.8V NJM2817DL3-21 2.1V NJM2817DL3-03 3.0V NJM2817DL3-05 5.0V Output voltage options available : 1.8 ~ 5.0V (0.1V step) ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg (Ta=25°C) RATINGS +8 +8 1190(*1) 3125(*2) -40 ∼ +85 -40 ∼ +150 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, (4Layers inner foil : 74.2 x 74.2mm Applying thermal via holes to a board based on JEDEC standard JESD51-5) OPERATING VOLTAGE 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) ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=4.7µF(CIN=10µF:Vo<2.1V), Co=4.7µF(Co=33µF : Vo<2.1V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. Output Voltage Vo Io=100mA -1.0% Quiescent Current IQ Io=0mA, except ICONT Quiescent Current VCONT=0V IQ (OFF) at Control OFF Output Current Io Vo x 0.9V 3 Line Regulation ∆Vo/∆VIN VIN=Vo+1V ∼ 7V, Io=100mA Load Regulation ∆Vo/∆Io Io=0 ∼ 3.0A 2.1V ≤ Vo < 2.5V 2.5V ≤ Vo < 2.8V Dropout Voltage(*2) Io=1.0A ∆VI -O 2.8V ≤ Vo < 3.4V 3.4V ≤ Vo ≤ 5.0V ein=200mVrms,f=1kHz, Ripple Rejection RR Io=100mA,Vo=3V Version Average Temperature ∆Vo/∆Ta Ta=0 ∼ 85°C, Io=100mA Coefficient of Output Voltage f=10Hz ∼ 80kHz, Io=100mA, Output Noise Voltage VNO Vo=3V Version Control Current ICONT VCONT=1.6V Control Voltage for ON-state VCONT(ON) 1.6 Control Voltage for OFF-state VCONT(OFF) 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 TYP. 700 MAX. +1.0% 1200 UNIT V µA - 1 µA 5 0.01 0.05 0.16 0.13 0.12 0.11 0.05 0.3 0.27 0.22 0.20 0.18 A %/V %/A 65 - dB ± 50 - ppm/°C 42 - µVrms 3 - 12 0.6 - µA V V V V V (*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. -2- Ver.2010-07-12 NJM2817 POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2817DL3 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 *3 VIN 4.7µF A V VCONT ICONT VOUT *3 NJM2817 4.7µF IOUT V VOU (Ceramic) CONTROL GND *3 : Vo < 2.1V version : CIN=10µF Vo < 2.1V version : Co=33µF(Ceramic) Ver.2010-07-12 -3- NJM2817 TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN VIN VOUT VOUT *4 *4 NJM2817 4.7µF 4.7µF R CONTROL GND *4 : Vo < 2.1V version : CIN=10µF Vo < 2.1V version : Co=33µF Connect control terminal to VIN terminal 2 In use of ON/OFF CONTROL: VIN VIN VOUT VOUT *4 *4 NJM2817 4.7µF 4.7µF R CONTROL GND *4 : Vo < 2.1V version : CIN=10µF Vo < 2.1V version : Co=33µF 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. -4- Ver.2010-07-12 NJM2817 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. Ver.2010-07-12 -5- NJM2817 TYPICAL CHARACTERISTICS NJM2817_5.0V Output Voltage vs.Output Current NJM2817_5.0V Output Voltage vs.Input Voltage 5.2 6 @:Ta=25°C Co=4.7µF(Ceramic) 5 Output Voltage : Vo (V) Output Voltage : Vo (V) 5.1 Io=0mA 5 Io=500mA 4.9 @:Ta=25°C VIN=6.0V Co=4.7µF(Ceramic) 4 3 2 Io=3000A 4.8 1 Io=2000A 4.7 4.7 4.8 4.9 5 5.1 5.2 5.3 0 5.4 0 2 Input Voltage : VIN (V) NJM2817_5.0V Ground Pin Current vs.OutputCurrent 6 8 NJM2817_5.0V Dropout Voltage vs.Output Current 5 0.35 @:Ta=25°C VIN=6.0V Co=4.7µF(Ceramic) @:Ta=25°C Vin=6.0V Co=4.7µF(Ceramic) 0.30 4 Dropout Voltage : dVI_O (V) Ground Pin Current : I GND (mA 4 Output Current : Io (A) 3 2 1 0.25 0.20 0.15 0.10 0.05 0 0.00 0 500 1000 1500 2000 2500 3000 0 500 Output Currnet : Io (mA) NJM2817_5.0V Output Voltage vs.Control Voltage Control Current (uA) Output Voltage (V) 3 Rc=100kΩ Rc=50kΩ 3000 30 Rc=50kΩ 20 Rc=100kΩ Rc=0Ω 10 Rc=0Ω 0 0 0 0.5 1 1.5 Control Voltage (V) -6- 2500 @:Ta=25°C VIN=6.0V Co=4.7µF(Ceramic) Io=500mA 40 4 1 2000 50 @:Ta=25°C VIN=6.0V Co=4.7µF(Ceramic) Io=500mA 2 1500 NJM2817_5.0V Control Current vs.Control Voltage 6 5 1000 Output Current : Io (mA) 2 2.5 0 1 2 3 4 5 6 Control Voltage (V) Ver.2010-07-12 NJM2817 NJM2817_5.0V Peak Output Current vs.Input Voltage NJM2817_5.0V Load Regulation vs.Output Current 8 Peak Output Current : Io MAX (mA) Load Regulation : dVo/dIo (mV) 0 -10 -20 -30 @:Ta=25°C Vin=6.0V Co=4.7µF(Ceramic) -40 1000 6 5 4 3 2 @:Ta=25°C Vo=4.5V Co=4.7µF(Ceramic) 1 -50 0 7 2000 3000 0 4000 6 7 Output Current : Io (mA) NJM2817_5.0V Quiesient Current vs.Input Voltage Output Noise Voltage :Vn (µVrms) Quiescent Current:IQ (µA) 1000 500 11 12 80 60 LPH:80kHz 40 @Ta=25°C VIN=6.0V Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 20 0 0 2 4 6 8 10 0.001 12 0.1 NJM2817_5.0V Ripple Rejection Ratio vs.Frequency 100 Io=0A 90 80 Ripple Rejection :RR(dB 70 60 Io=500mA 50 40 @:Ta=25°C VIN=6.0V ein=200mVrms Cin=4.7µF(Cera) Co=4.7µF(Cera) 70 60 Io=500mA 50 40 30 20 @:Ta=25°C VIN=6.0V ein=200mVrms Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 10 10 Io=2000mA Io=2000mA 0 0 0.01 Io=0A 90 80 20 1000 NJM2817_5.0V Ripple Rejection Ratio vs.Frequency 100 30 10 Output Current :Io(mA) Input Voltage:VIN (V) Ripple Rejection :RR(dB 10 100 @:Ta=25°C Output is open Co=4.7µF(Ceramic) Inculding Icont 0 0.1 1 Frequency :f(kHz) Ver.2010-07-12 9 NJM2817_5.0V Output Noize Voltage vs.Output Current 2000 1500 8 Input Voltage : VIN (V) 10 100 0.01 0.1 1 10 100 Frequency :f(kHz) -7- NJM2817 NJM2817_5.0V Dropout Voltage vs.Temperature NJM2817_5.0V Equivalent Serise Resistance vs. Output Current 0.50 @:Io=100mA Co=4.7µF(Ceramic) Co=4.7µF(Ceramic) 100 Equivalent serise Resistance:ESR(Ω 0.40 1500mA 2000mA 2500mA 3000mA Dropout Voltage : dVi-o (V) 10 STABLE REGION 1 @:Ta=25°C VIN=6.0V Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 0.1 0.30 0.20 0.10 0.01 0.001 0.01 0.1 1 10 Output Current:Io(mA) 100 1000 0.00 -50 0 50 100 150 Temperature:Ta (°C) NJM2817_5.0V Control Voltage vs.Temperature NJM2817_5.0V Output Voltage vs.Temperature 5.20 2.0 @:Vin=6.0V Io=100mA Co=4.7µF(Ceramic) Co=4.7µF(Ceramic) 1.5 Control Voltage(OFF) :Vcont-off (V) Output Voltage : Vo (V) 5.10 5.00 4.90 4.80 1.0 0.5 @:Vin=6.0V Io=100mA Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 0.0 -50 0 50 100 150 -50 0 50 100 150 Temperature:Ta (°C) Temperature:Ta (°C) NJM2817_5.0V Quiescent Current vs.Temperature NJM2817_5.0V Short Circuit Current vs.Temperature 1000 2.0 @:Vin=6.0V Output is short to ground Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 800 600 Short Circuit Current : Isc (mA) Quiescent Current : I Q (mA) 1.5 400 @:Vin=6.0V Output is open Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) including Icont 200 0 -50 0 50 Temperature:Ta (°C) -8- 100 150 1.0 0.5 0.0 -50 0 50 100 Temperature:Ta (°C) 150 Ver.2010-07-12 NJM2817 NJM2817_5.0V Load Regulation vs.Temperature NJM2817_5.0V Line Regulation vs.Temperature 0.30 @:Vin=6-7V Io=100mA Co=4.7µF(Ceramic) Co=4.7µF(Ceramic) 0.05 Load Regulation : dVo/dIo (%/mA) Line Regulation : dVo/dVin (%/V) 0.10 0.00 -0.05 @:Vin=6.0V Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 0.25 Io=0-3A Io=0-2A 0.20 0.15 0.10 0.05 -0.10 -50 0 50 100 Temperature:Ta (°C) 150 0.00 -50 0 50 100 150 Temperature:Ta (°C) NJM2817_5.0V Output Voltage vs.Temperature 6.0 5.0 Output Voltage : Vo (V) 4.0 3.0 2.0 @:Vin=6.0V Io=100mA Cin=4.7µF(Ceramic) Co=4.7µF(Ceramic) 1.0 0.0 -50 0 50 100 150 200 Temperature:Ta (°C) Ver.2010-07-12 -9- NJM2817 NJM2817_5.0V ON/OFF Transient Response NJM2817_5.0V 5 0 Control Voltage -5 4 -10 3 Output Voltage -15 2 1 -20 @:Ta=25°C VIN=6.0V Io=0mA Co=4.7µF(Cera) 0 -1 0 2 4 -25 -30 6 8 10 6 4 5.06 0.5 Output Current 0 5.02 -0.5 Output Voltage @:Ta=25°C VIN=6.0V Io=500-1000mA Co=4.7µF(Cera) 4.96 4.94 -1 0 40 80 120 160 -1.5 -2 200 -2.5 Output Voltage:Vo(V) 1.5 1 4.98 -15 2 -20 0 -25 -30 0 4 8 12 16 20 NJM2817_5.0V Input Transient Response 5.08 5 -10 Time:t(ms) NJM2817_5.0V Load Transient Response 5.04 -5 Output Voltage Time:t(s) 5.1 0 @:Ta=25°C VIN=6.0V Io=100mA Co=4.7µF(Cera) 8 -2 10 Control Voltage 5.3 8 5.25 7 6 5.2 Input Voltage 5.15 5.1 @:Ta=25°C VIN=6.0V Io=100mA Cin=4.7uF(Cera) Co=4.7µF(Cera) 5 4 5.05 3 5 2 Output Voltage 4.95 4.9 Input Voltage:VIN(V) Output Voltage:Vo(V) 5 5 12 Output Voltage:Vo(V) 6 10 14 control Voltage:Vcont(V) 10 control Voltage:Vcont(V) ON/OFF Transient Respons without Load 7 1 0 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. - 10 - Ver.2010-07-12