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LM317K 데이터시트(PDF) 7 Page - STMicroelectronics |
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LM317K 데이터시트(HTML) 7 Page - STMicroelectronics |
7 / 25 page LM117/LM217/LM317 Electrical characteristics 7/25 Table 5. Electrical characteristics for LM317 (VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = 0 to 125°C, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit ΔVO Line regulation VI - VO = 3 to 40 V TJ = 25°C 0.01 0.04 %/V 0.02 0.07 ΔVO Load regulation VO ≤5 V IO = 10 mA to IMAX TJ = 25°C 5 25 mV 20 70 VO ≥5 V, IO = 10 mA to IMAX TJ = 25°C 0.1 0.5 % 0.3 1.5 IADJ Adjustment pin current 50 100 µA ΔIADJ Adjustment pin current VI - VO = 2.5 to 40V, IO = 10 mA to 500mA 0.2 5 µA VREF Reference voltage (between pin 3 and pin 1) VI - VO = 2.5 to 40V IO = 10 mA to 500mA PD ≤PMAX 1.21.251.3 V ΔVO/VO Output voltage temperature stability 1% IO(min) Minimum load current VI - VO = 40 V 3.5 10 mA IO(max) Maximum load current VI - VO ≤15 V, PD < PMAX 1.5 2.2 A VI - VO = 40 V, PD < PMAX, TJ = 25°C 0.4 eN Output noise voltage (percentage of VO) B = 10Hz to 100kHz, TJ = 25°C 0.003 % SVR Supply voltage rejection (1) TJ = 25°C, f = 120Hz CADJ=0 65 dB CADJ=10µF 66 80 1. CADJ is connected between pin 1 and ground. |
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