NJM317F

Designated client product This product will be discontinued its production in the near term. And it is provided for customers currently in use only, with a time limit. It can not be available for your new project. Please select other new or existing products. For more information, please contact our sales office in your region. New Japan Radio Co.,Ltd. www.njr.com NJM317 ADJUSTABLE 3-TERMINAL POSITIVE VOLTAGE REGULATOR ■ GENERAL DESCRIPTION The NJM317 is adjustable 3-terminal positive voltage regulator IC. It is capable of adjustment from typical 1.25V to 37V output voltage range with two resistors. It is capable of supplying in excess of 1.5A with heat sink. The NJM317 is suitable for the power supply for general purpose. ■ FEATURES  Operating Voltage (+4.25V to +40V)  Adjustable Output Down to 1.2V  Guarantee'd 1.5A Output Current  Line Regulation typically (0.01%/V)  Load Regulation typically (0.1%)  80dB Ripple Rejection  Package Outline TO-220F, TO-252  Bipolar Technology ■ PACKAGE OUTLINE NJM317F NJM317DL1 1. Adjustment 2. Output 3. Input ■ EQUIVALENT CIRCUIT Ver.2016-04-20 -1- NJM317 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Input-Output Differential Voltage SYMBOL RATINGS UNIT VIN - VO 40 (TC=25ºC) V PD TO-220F 16 (TC≤70ºC) TO-252 10 (Tc≤25ºC) 1 (Ta≤25ºC) W Topr (j) Topr (a) -40 to +150 -40 to +85 ºC Tstg -50 to +150 ºC Power Dissipation Operating Temperature Range (Junction) (Ambient) Storage Temperature Range ■ THERMAL CHARACTERISTICS TO-220F TO-252 Junction-To-Ambient θja 60 125 Junction-To-Case θjc 5 12.5 Thermal Resistance ºC/W ■ ELECTRICAL CHARACTERISTICS (VIN - VO 5V, IO=500mA, CIN=0.1μF, CO1μF, Tj25ºC) Measurement is to be conducted in pulse testing. PARAMETER Reference Voltage SYMBOL VREF VREF-VIN VREF-IO Reference Voltage Thermal Change ΔVREF-T Adjustment Pin Current IADJ TEST CONDITION 3V ≤ (VIN - VO) ≤ 40V, IO=100mA 10mA ≤ IO ≤ 1.5A (TO-220F) 10mA ≤ IO ≤ 500mA (TO-252) 0 ≤ Tj ≤ 125ºC MIN. TYP. MAX. UNIT 1.2 1.2 1.2 1.2 1.25 1.25 1.25 1.25 1.3 1.3 1.3 1.3 V - 5 - mV - 50 100 μA ΔIADJ - VIN ΔIADJ - IO 3V ≤ (VIN - VO) ≤ 40V, IO=100mA 10mA ≤ IO ≤ 1.5A (TO-220F) 10mA ≤ IO ≤ 500mA (TO-252) - 0.2 0.2 0.2 5 5 5 μA ΔVO - VIN 3V ≤ (VIN - VO) ≤ 40V, IO=100mA - 0.01 0.04 %/V Load Regulation ΔVO - IO 10mA ≤ IO ≤ 1.5A (TO-220F) 10mA ≤ IO ≤ 500mA (TO-252) VO ≤ 5V VO > 5V - 5 0.1 25 0.5 mV % Minimum Load Current IO(MIN) (VIN - VO) = 40V - 3.5 10 mA Peak Output Current IO(PEAK) 5V ≤ (VIN - VO) ≤ 15V (VIN - VO) = 40V 1.5 0.15 2.2 0.4 - A RMS Output Noise Voltage VNO 10Hz ≤ f ≤ 10kHz (RMS) - 0.001 - %/VO Ripple Rejection Ratio RR VO 10V, f= 120Hz, ΔVIN =1Vrms CADJ0 CADJ=10μF 66 65 80 - Adjustment Pin Current Change Line Regulation -2- dB Ver.2016-04-20 NJM317 ■ TEST CIRCUIT 1) (Reference Voltage Thermal Change), (Adjustment Pin Current Change), (Line Regulation), (Load Regulation), (Peak Output Current), (RMS Output Noise Current) 2) Minimum Load Current IOMIN: Minimum Io for VO = VREF (Typical 1.25V) (VIN = 40 + VREF) 3) Ripple Rejection Ripple Rejection = 20log10  eIN  [dB]  eo  Ver.2016-04-20 -3- NJM317 ■ TYPICAL APPLICATIONS 1) VO = 1.25V to 37V Adjustable Voltage Regulator VO = VREF x  R2  1    R1  + R2 x IADJ 2) Selected Output Voltage The transistors Q3 are switched by selective signal inputs and the output voltage VO is controlled by the transistor on or off. (Example) When all transistor is off, VO ·=· VREF x  R2  1    R1  When the transistor Q3 is on, and others are off. VO ·=· VREF x  R2  R3  1   (R 2  R3)  R1   *IADJ ignore. Selective Signal Inputs 3) Regulater with Protection Diodes D1 protects about CO D2 protects about CADJ -4- Ver.2016-04-20 NJM317 4) Constant Current Regulator R1 ≤ 125Ω 10mA ≤ IO ≤ 1.5A IO = VREF R1 NJM317FA NJM317DL1 Ver.2016-04-20 -5- NJM317 ■ TYPICAL CHARACTERISTICS Minimum Load Current Peak Output Current vs. Input-Output Differential Voltage Output Voltage vs. Input Voltage. Ripple Rejection vs. Frequency Ripple Rejection vs. Output Voltage -6- Ripple Rejection vs. Output Current Ver.2016-04-20 NJM317 ■ TYPICAL CHARACTERISTICS Adjustment Pin Current vs. Temperature Reference Voltage vs. Temperature Load Regulation vs. Temperature Line Regulation vs. Temperature Thermal Shutdown [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.2016-04-20 -7-