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LM317L-N bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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LM317L-N bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 37 page 5 LM317L-N www.ti.com SNVS775K – MARCH 2000 – REVISED APRIL 2016 Product Folder Links: LM317L-N Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated (1) Unless otherwise noted, these specifications apply: −25°C ≤ Tj ≤ 125°C for the LM317L-N; VIN − VOUT = 5 V 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. (2) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. (3) Thermal resistance of the TO-92 package is 180°C/W junction to ambient with 0.4-inch leads from a PCB and 160°C/W junction to ambient with 0.125-inch lead length to PCB. 6.5 Electrical Characteristics (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Line regulation TJ = 25°C, 3 V ≤ (VIN − VOUT) ≤ 40 V, IL ≤ 20 mA (2) 0.01 0.04 %/V Load regulation TJ = 25°C, 5 mA ≤ IOUT ≤ IMAX (2) 0.1% 0.5% Thermal regulation TJ = 25°C, 10-ms Pulse 0.04 0.2 %/W Adjustment pin current 50 100 μA Adjustment pin current change 5 mA ≤ IL ≤ 100 mA 3 V ≤ (VIN − VOUT) ≤ 40 V, P ≤ 625 mW 0.2 5 μA Reference voltage 3 V ≤ (VIN − VOUT) ≤ 40 V (3) 5 mA ≤ IOUT ≤ 100 mA, P ≤ 625 mW 1.2 1.25 1.3 V Line regulation 3 V ≤ (VIN − VOUT) ≤ 40 V, IL ≤ 20 mA (2) 0.02 0.07 %/V Load regulation 5 mA ≤ IOUT ≤ 100 mA (2) 0.3% 1.5% Temperature stability TMIN ≤ TJ ≤ TMAX 0.65% Minimum load current (VIN − VOUT) ≤ 40 V 3.5 5 mA 3 V ≤ (VIN − VOUT) ≤ 15 V 1.5 2.5 Current limit 3 V ≤ (VIN − VOUT) ≤ 13 V 100 200 300 mA (VIN − VOUT) = 40 V 25 50 150 RMS output noise, % of VOUT TJ = 25°C, 10 Hz ≤ f ≤ 10 kHz 0.003% Ripple rejection ratio VOUT = 10 V, f = 120 Hz, CADJ = 0 65 dB CADJ = 10 μF 66 80 Long-term stability TJ = 125°C, 1000 Hours 0.3% 1% |
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