Diodes AP1635 - Manual (Page 2)

AP1635
PWM/PFM DUAL MODE STEP-DOWN DC/DC
CONVERTER
AP1635 Rev. 4 2 of 8 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Pin Assignments
1
2
3
4
8
7
6
5
FB
SW SVcc
SW
CE/SS
GND
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 20 Ω 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