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APW7145 Datasheet(PDF) 11 Page - Anpec Electronics Coropration |
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APW7145 Datasheet(HTML) 11 Page - Anpec Electronics Coropration |
11 / 23 page Copyright © ANPEC Electronics Corp. Rev. A.7 - Mar., 2011 APW7145 www.anpec.com.tw 11 Typical Application Circuit 1. 4.3~14V Single Power Input Step-down Converter (with a Ceramic Output Capacitor) LX EN 6 VIN 2 AGND 3 COMP 5 9 U1 APW7145 FB 4 V OUT L1 3A V IN C1 LX 7 Enable Shutdown PGND 8 C2 R1 ± 1% R2 ±1% C4 (± 30%, Optional) R3 (± 5%) C3 (± 30%) a. Cost-effective Feedback Compensation (C4 is no connection) V IN(V) V OUT(V) L1( µF) C2( µF) C2 ESR(m Ω) R1(k Ω) R2(k Ω) R3(k Ω) C3(pF) 12 5 6.8 22 5 63.0 12 33.0 820 12 5 6.8 44 3 63.0 12 68.0 820 12 3.3 4.7 22 5 46.9 15 27.0 1000 12 3.3 4.7 44 3 46.9 15 56.0 1000 12 2 3.3 22 5 30.0 20 18.0 1800 12 2 3.3 44 3 30.0 20 33.0 1800 12 1.8 3.3 22 5 18.8 15 15.0 1800 12 1.8 3.3 44 3 18.8 15 30.0 1800 5 3.3 2.2 22 5 46.9 15 27.0 470 5 3.3 2.2 44 3 46.9 15 56.0 470 5 1.8 2.2 22 5 25.0 20 15.0 820 5 1.8 2.2 44 3 25.0 20 30.0 820 5 1.5 2.2 22 5 21.9 25 12.0 1000 5 1.5 2.2 44 3 21.9 25 24.0 1000 5 1.2 2.2 22 5 7.5 15 10.0 1200 5 1.2 2.2 44 3 7.5 15 20.0 1200 |
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