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LM317 Datasheet(PDF) 2 Page - Texas Instruments |
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LM317 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 10 page LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044H – SEPTEMBER 1997 – REVISED DECEMBER 2001 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AVAILABLE OPTIONS PACKAGED DEVICES TJ HEAT-SINK (DCY)† HEAT-SINK MOUNTED, TO-220 (KC) PLASTIC FLANGE MOUNTED, POWER FLEX (KTE)‡ 0 °C to 125°C LM317DCY LM317KC LM317KTER † The DCY package also is available taped and reeled, e.g., LM317DCYR. ‡ The KTE package has the same footprint as TO-263 and can be mounted on a TO-263 land pattern. The KTE package is only available taped and reeled. schematic diagram ADJUST OUTPUT INPUT absolute maximum ratings over virtual junction temperature range (unless otherwise noted)§ Input-to-output differential voltage, VI – VO 40 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Notes 1 and 2): DCY package 49 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . (see Notes 1 and 3): KC package 25 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . (see Notes 1 and 2): KTE package 23 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . § Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. 2. The package thermal impedance is calculated in accordance with JESD 51-5. 3. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions MIN MAX UNIT VI – VO Input-to-output voltage differential 3 37 V IO Output current 1.5 A TJ Operating virtual junction temperature 0 125 °C |
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