Diodes AP1635 Manuel d'utilisateur télécharger pdf (Page 2)

AP1635

PWM/PFM DUAL MODE STEP-DOWN DC/DC

CONVERTER

AP1635 Rev. 4 2 of 8 FEBRUARY 2009

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Pin Assignments

SVcc

CE/SS

GND

PVcc

( Top View )

SOP-8L

Pin Descriptions

Pin Name Pin No. Description

FB 1 Feedback pin

CE/SS 2

Chip Enable/ Soft Start:

H: Enable

L: Disable

SVcc 3

IC signal power supply pin, add a 20Ω resistor to PVcc and a

0.1µF capacitor to GND.

PVcc 4 IC power supply pin

SW 5/6

Switch Pin. Connect external inductor/diode here. Minimize

trace area at this pin to reduce EMI.

GND 7/8 GND Pin

1 2 3 4 5 6 7 8

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Diodes AP1635 Manuel d'utilisateur Page 2