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APL5331 датащи(PDF) 12 Page - Anpec Electronics Coropration |
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APL5331 датащи(HTML) 12 Page - Anpec Electronics Coropration |
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12 / 23 page ![]() Copyright © ANPEC Electronics Corp. Rev. B.4 - Mar., 2008 APL5331 www.anpec.com.tw 12 Typical Application Circuit C OUT : 470µF, ESR=25mΩ R1, R2 : 1k Ω, 1% Q1 : APM2300 AC Note : Since R1 and R2 are very small, the voltage offset caused by the bias current of VREF can be ignore. 1. V OUT=1.25V/0.9V Application V CNTL +3.3V C CNTL 47 µF V OUT +1.25V/0.9V -3~+3A C SS 0.1 µF GND R1 1k R2 1k V IN +2.5V/1.8V GND C IN 470 µF Q1 Shutdown C OUT 470 µF V REF GND VREF VIN VOUT VCNTL 2. V OUT=1.4V Application 3. General Application V CNTL +5V C CNTL 47 µF V OUT +1.4V/ -3~+3A CSS 0.1 µF GND R1 1k R2 1k V IN +2.8V GND C IN 470 µF C OUT 470 µF V REF GND VREF VIN VOUT VCNTL V CNTL +5V C CNTL 1 µF V OUT 1.2V/-2~+1.8A C SS 0.1 µF GND R1 R2 2k V IN +1.8V GND C IN 22 µF C OUT 100 µF V REF GND VREF VIN VOUT VCNTL V REFIN +1.8V 1k (V) R2 R1 R2 V V REFIN OUT + ⋅ = |
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