LM317MDT STMicroelectronics, LM317MDT Datasheet
LM317MDT
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LM317MDT Summary of contents
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... The nominal output voltage is selected by means of only a resistive divider, making the device Table 1. Device summary TO-220 LM317MT February 2008 TO-220 exceptionally easy to use and eliminating the stocking of many fixed regulators. Order codes DPAK (tape and reel) LM217MDT-TR LM317MDT-TR Rev 7 LM217M LM317M DPAK 1/21 www.st.com 21 ...
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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Diagram Figure 1. Schematic diagram 3/21 ...
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Pin configuration Figure 2. Pin connections (top view) TO-220 4/21 DPAK ...
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Maximum ratings Table 2. Absolute maximum ratings Symbol V -V Input-output differential voltage Power dissipation D T Operating junction temperature range OP T Storage temperature range STG ≥ 1. Re-Boot is not guaranteed for T J ...
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Electrical characteristics Table 4. Electrical characteristics of LM217M (refer to the test circuits 100 mA Symbol Parameter ΔV Line regulation O ΔV Load regulation O I ...
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Table 5. Electrical characteristics of LM317M (refer to the test circuits 100 mA Symbol Parameter ΔV Line regulation O ΔV Load regulation O I Adjustment pin current ...
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Typical performance Figure 4. Current limit Figure 6. Basic adjustable regulator Figure 7. Thermal resistance & maximum power dissipation vs P.C.B. copper length for DPAK Note: P calculated for T dmax 8/21 Figure 5. Minimum operating current = 50°C. ...
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Application information The LM217M/LM317M provide an internal reference voltage of 1.25 V between the output and adjustment terminals. These devices are used to set a constant current flow across an external resistor divider (see ...
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Application circuits Figure 8. Voltage regulator with protection diodes Figure 9. Slow turn- regulator Figure 10. Current regulator 1.25V/R O REF 1 + ADJ 1 10/21 ...
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Figure 11 electronic shut-down regulator Figure 12. Digitally selected outputs (R = sets maximum 11/21 ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...
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TO-220 mechanical data mm. Dim. Min. Typ. A 4.40 C 1.23 D 2.40 D1 1.27 E 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2.4 H2 10.0 L2 16.4 L4 13.0 L5 2.65 L6 15.25 L7 6.2 L9 ...
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Figure 13. Drawing dimension DPAK (type STD-ST) 14/21 0068772/G ...
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Figure 14. Drawing dimension DPAK (type FUJITSU-Subcon.) 0068772/G 15/21 ...
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Figure 15. Drawing dimension DPAK (type IDS-Subcon.) 16/21 0068772/G ...
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Table 6. DPAK mechanical data type STD-ST Dim. mm. Min. Typ. A 2.20 A1 0.90 A2 0.03 b 0.64 b4 5.20 c 0.45 c2 0.48 D 6.00 D1 5.10 E 6.40 E1 4.70 e 2.28 e1 4.40 H 9.35 L ...
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Figure 16. DPAK footprint recommended data Table 7. Footprint data Dim 18/21 Values mm. 6.70 6.70 1.8 3.0 1.60 2.30 2.30 inch. 0.264 0.64 0.070 0.118 0.063 0.091 0.091 ...
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Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. Typ 12.8 13 6.80 6.90 Bo 10.40 10.50 Ko 2.55 2.65 Po 3.9 4.0 P 7.9 8.0 inch. Max. Min. Typ. 330 13.2 ...
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Revision history Table 8. Document revision history Date Revision 21-Jun-2004 5 06-Dec-2006 6 11-Feb-2008 7 20/21 Changes The document has been reformatted. DPAK mechanical data updated, added footprint data. Added: Table 1 on page 1. ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...