LM337H STMicroelectronics, LM337H Datasheet
LM337H
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LM337H Summary of contents
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Three-terminal adjustable negative voltage regulators Features ■ Output voltage adjustable down to V ■ 1.5 A guaranteed output current ■ 0.3 %/V typical load regulation ■ 0.01 %/V typical line regulation ■ Current limit constant with temperature ■ Ripple rejection: ...
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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Diagram 1 Figure 1. Schematic diagram 3/18 ...
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Pin configuration Figure 2. Pin connections (top view) TO-220 4/18 TO-3 ...
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Maximum ratings Table 2. Absolute maximum ratings Symbol Input output voltage differential Output current O P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP Note: Absolute maximum ...
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Electrical characteristics Table 4. Electrical characteristics of LM137 (T otherwise specified) Symbol Parameter V Reference voltage REF (2) K Line regulation VI (2) K Load regulation VO Thermal regulation I Adjustment pin current ADJ Adjustment pin current ΔI ADJ ...
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Table 5. Electrical characteristics of LM337 (T Symbol Parameter V Reference voltage REF (2) K Line regulation VI (2) K Load regulation VO Thermal regulation I Adjustment pin current ADJ Adjustment pin current ΔI ADJ change (2) K Line regulation ...
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Typical characteristics Figure 3. Load regulation Figure 5. Adjustment current Figure 7. Temperature stability 8/18 Figure 4. Current limit Figure 6. Dropout voltage Figure 8. Minimum operating current ...
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Figure 9. Ripple rejection vs output voltage Figure 11. Ripple rejection vs output current Figure 13. Line transient response Figure 10. Ripple rejection vs frequency Figure 12. Output impedance Figure 14. Load transient response 9/18 ...
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Thermal regulation When power is dissipated in an IC, a temperature gradient occurs across the IC chip affecting the individual IC circuit components. With an IC regulator, this gradient can be especially severe since power dissipation is large. Thermal ...
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Typical application Figure 15. Adjustable negative voltage regulator * µF solid tantalum or 10µF aluminium electrolytic required for stability µF solid tantalum is required only if regulator is more than 10 cm ...
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Figure 17. Current regulator Figure 18. Negative regulator with protection diodes * When CL is larger than 20 µF, D1 protects the LM137 in case the input supply is shorted. ** When C2 is larger than 10 µF and V ...
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Figure 19. - 5.2 V regulator with electronic shutdown 1. Minimum output = - 1.3 V when control input is low. Figure 20. Current regulator (1) 13/18 ...
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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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Dim. Min 0. 3. 16/18 TO-3 mechanical data mm. Typ. Max. 11.85 1.05 1.10 1.70 8.7 20.0 10.9 16.9 26.2 4.09 39.5 30. inch. Min. Typ. ...
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Revision history Table 6. Document revision history Date Revision 19-Jul-2004 1 10-Jan-2005 2 17-Jul-2008 3 Changes First issue. Modified pin connection for TO-3. Added: Table 1 on page 1. 17/18 ...
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