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AP1530 PWM CONTROL 3A STEP-DOWN CONVERTER AP1530 Rev. 1 4 of 8 MARCH 2007 www.diodes.com © Diodes Incorporated Typical Application Circuit AP1530 + - V SS EN C C R A R B D1 PDS540 FB Vcc Output CVcc V OUT V IN R OCSET OCSET C OUT C IN Optional C OCSET C EN R EN Option 100K Note: V OUT = VFB x (1+RA/RB) R B=0.7K~5K ohm L1 22uH 6.8K 1.3K 3K 0.1uF + - C 0.1uF 470uF 680uF 0.1uF VIN=12V, IMAX=3A VOUT 2.5V 3.3V 5V L1 Value 15uH 18uH 22uH |
