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LM317T Datasheet(PDF) 2 Page - Fairchild Semiconductor |
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LM317T Datasheet(HTML) 2 Page - Fairchild Semiconductor |
2 / 6 page ©2000 Fairchild Semiconductor International Rev. B, May 2000 ABSOLUTE MAXIMUM RATINGS (TA= +25°C, unless otherwise specified) ELECTRICAL CHARACTERISTICS (VI - VO = 5V, IO = 0.5A, 0°C ≤ TJ ≤ +125°C, IMAX = 1.5A, PMAX = 20W, unless otherwise specified) * Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken into account separately. Pulse testing with low duty is used. (PMAX = 20W) Characteristic Symbol Value Unit Input-Output Voltage Differential VI - VO 40 V Lead Temperature TLEAD 230 °C Power Dissipation PD Internally limited W Operating Temperature Range TOPR 0 ~ +125 °C Storage Temperature Range TSTG -65 ~ +125 °C Temperature Coefficient of Output Voltage VO/T 0.02 %/°C Characteristic Symbol Test Conditions Min Typ Max Unit Line Regulation Rline TA = +25°C 3V ≤ VI - VO ≤ 40V 0.01 0.04 %/V 3V ≤ VI - VO ≤ 40V 0.02 0.07 %/V Load Regulation Rload TA = +25°C, 10mA ≤ IO ≤ IMAX VO < 5V VO ≥ 5V 18 0.4 25 0.5 mV %/VO 10mA ≤ IO ≤ IMAX VO < 5V VO ≥ 5V 40 0.8 70 1.5 mV %/VO Adjustable Pin Current IADJ 46 100 µA Adjustable Pin Current Change ∆IADJ 3V ≤ VI - VO ≤ 40V 10mA ≤ IO ≤ IMAX P ≤ PMAX 2.0 5 µA Reference Voltage VREF 3V ≤ VIN - VOUT ≤ 40V 10mA ≤ IO ≤ IMAX PD ≤ PMAX 1.20 1.25 1.30 V Temperature Stability STt 0.7 %/VO Minimum Load Current to Maintain Regulation L(MIN) VI - VO = 40V 3.5 12 mA Maximum Output Current IO(MAX) VI - VO ≤ 15V, PD ≤ PMAX VI - VO ≤ 40V, PD ≤ PMAX, TA = 25°C 1.0 2.2 0.3 A RMS Noise, % of VOUT eN TA= +25°C, 10Hz ≤ f ≤ 10KHz 0.003 0.01 %/VO Ripple Rejection RR VO = 10V, f = 120Hz without CADJ CADJ = 10µF 66 60 75 dB Long-Term Stability, TJ = THIGH ST TA = +25°C for end point measurements, 1000HR 0.3 1 % Thermal Resistance Junction to Case RθJC 5 °C/W |
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