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LM317LM 데이터시트(PDF) 3 Page - National Semiconductor (TI) |
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LM317LM 데이터시트(HTML) 3 Page - National Semiconductor (TI) |
3 / 17 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Internally Limited Input-Output Voltage Differential 40V Operating Junction Temperature Range −40˚C to +125˚C Storage Temperature −55˚C to +150˚C Lead Temperature (Soldering, 4 seconds) 260˚C Output is Short Circuit Protected ESD rating to be determined. Electrical Characteristics (Note 2) Parameter Conditions Min Typ Max Units Line Regulation T J = 25˚C, 3V ≤ (VIN −VOUT) ≤ 40V, IL ≤ 20mA (Note 3) 0.01 0.04 %/V Load Regulation T J = 25˚C, 5mA ≤ IOUT ≤ IMAX, (Note 3) 0.1 0.5 % Thermal Regulation T J = 25˚C, 10ms Pulse 0.04 0.2 %/W Adjustment Pin Current 50 100 µA Adjustment Pin Current 5mA ≤ I L ≤ 100mA 0.2 5 µA Change 3V ≤ (V IN −VOUT) ≤ 40V, P ≤ 625mW Reference Voltage 3V ≤ (V IN −VOUT) ≤ 40V, (Note 4) 1.20 1.25 1.30 V 5mA ≤ I OUT ≤ 100mA, P ≤ 625mW Line Regulation 3V ≤ (V IN −VOUT) ≤ 40V, IL ≤ 20mA (Note 3) 0.02 0.07 %/V Load Regulation 5mA ≤ I OUT ≤ 100mA, (Note 3) 0.3 1.5 % Temperature Stability T MIN ≤ TJ ≤ TMax 0.65 % Minimum Load Current (V IN −VOUT) ≤ 40V 3.5 5 mA 3V ≤ (V IN −VOUT) ≤ 15V 1.5 2.5 Current Limit 3V ≤ (V IN −VOUT) ≤ 13V 100 200 300 mA (V IN −VOUT) = 40V 25 50 150 mA Rms Output Noise, % of V OUT T J = 25˚C, 10Hz ≤ f ≤ 10kHz 0.003 % Ripple Rejection Ratio V OUT = 10V, f = 120Hz, CADJ = 0 65 dB C ADJ = 10µF 66 80 dB Long-Term Stability T J = 125˚C, 1000 Hours 0.3 1 % Thermal Resistance Z Package 0.4" Leads 180 ˚C/W Junction to Ambient Z Package 0.125 Leads 160 ˚C/W SO-8 Package 165 ˚C/W 6-Bump micro SMD 290 ˚C/W Thermal Rating of SO Package 165 ˚C/W Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: Unless otherwise noted, these specifications apply: −25˚C ≤ Tj ≤ 125˚C for the LM317L; VIN −VOUT = 5V and IOUT = 40 mA. Although power dissipation is internally limited, these specifications are applicable for power dissipations up to 625 mW. IMAX is 100 mA. Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are cov- ered under the specification for thermal regulation. Note 4: Thermal resistance of the TO-92 package is 180˚C/W junction to ambient with 0.4" leads from a PC board and 160˚C/W junction to ambient with 0.125" lead length to PC board. www.national.com 3 |
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