L4941 STMicroelectronics, L4941 Datasheet
L4941
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L4941 Summary of contents
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... Short circuit protection ■ Reverse polarity protection Description The L4941 is a three terminal 5V positive regulators available in TO-220 and DPAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery ...
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... Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Test circuits 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/ L4941 ...
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... L4941 1 Block diagram Figure 1. Block diagram Block diagram 3/17 ...
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... Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) TO-220 4/17 L4941 DPAK ...
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... L4941 3 Maximum ratings Table 1. Absolute maximum ratings Symbol V Forward input voltage I V Reverse input voltage ( Output current O P Power dissipation D T Storage temperature range stg T Operating junction temperature range op Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur ...
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... Test circuits 4 Test circuits Figure 3. DC Parameters Figure 4. Load rejection Figure 5. Ripple rejection 6/17 L4941 ...
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... L4941 5 Electrical characteristics Table 3. Electrical characteristics (refer to test circuit, V unless otherwise specified.) Symbol Parameter V Output voltage O V Input voltage I ∆V Line regulation O ∆V Load regulation O I Quiescent current q ∆I Quiescent current change q V Dropout voltage d ∆V /∆T Output voltage drift O SVR ...
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... Typical application 6 Typical application Figure 6. Dropout voltage vs output current Figure 8. Output voltage vs temperature Figure 10. Quiescent current vs input voltage Figure 11. Quiescent current vs output current 8/17 Figure 7. Dropout voltage vs temperature Figure 9. Quiescent current vs temperature L4941 ...
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... L4941 Figure 12. Short circuit current vs temperature Figure 13. Peak output current vs input/output Figure 14. Low voltage behavior Figure 16. Supply voltage rejection vs output current differential voltage Figure 15. Supply voltage rejection vs frequency Figure 17. Load dump characteristics Typical application 9/17 ...
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... Typical application Figure 18. Line transient response Figure 20. Load transient response 10/17 Figure 19. Total power dissipation L4941 ...
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... Schematic application Figure 21. Distributed supply with On-card L4940 and L4941 low drop regulator Figure 22. Distributed Supply with On-card L4940 and L4941 low drop regulator ADVANTAGES OF THESE APPLICATION ARE: On card regulation with short-circuit and thermal protection on each output. Vary high total system efficiency due to the switching preregulation and very low-drop postregulation. ...
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... These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK trademark. ECOPACK specifications are available at: 12/17 www.st.com. L4941 ® ...
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... L4941 DIM. MIN. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 TO-220 MECHANICAL DAT A mm. TYP MAX. 4.60 1.32 2.72 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 16.4 14.0 2.95 15.75 6.6 3.93 3.85 Package mechanical data inch MIN. TYP. MAX. 0.173 0.181 0.048 0.051 0.094 0.107 0.050 0.019 0.027 0.024 0.034 0.044 0.067 0.044 0.067 0.194 ...
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... MIN. TYP. MAX. 0.086 0.094 0.035 0.043 0.001 0.009 0.025 0.035 0.204 0.212 0.017 0.023 0.019 0.023 0.236 0.244 0.200 0.252 0.260 0.185 0.090 0.173 0.181 0.368 0.397 0.039 0.110 0.031 0.023 0.039 0.008 0° 0068772-F L4941 8° ...
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... L4941 Tape & Reel DPAK-PPAK MECHANICAL DATA DIM. MIN 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 mm. TYP MAX. 330 13.0 13.2 22.4 6.90 7.00 10.50 10.60 2.65 2.75 4.0 4.1 8.0 8.1 Package mechanical data inch MIN. TYP. MAX. 12.992 0.504 0.512 0.519 0.795 2.362 0.882 0.268 0.272 0.2.76 0.409 0.413 0.417 0.100 0.104 0.105 0.153 ...
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... Revision history 9 Revision history Table 4. Revision history Date Revision 21-Jun-2004 4 15-Sep-2006 5 16/17 Document updating. Order Codes has been updated and new template. Changes L4941 ...
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... L4941 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. ...