Diodes AP1609 - Manual (Page 2)

AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
AP1609 Rev. 2 2 of 9 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Pin Assignments
1
2
3
4
8
7
6
5
CE
LX FB
LX
Vcc
GND
GND
PGND
( Top View )
SOP-8L
Pin Descriptions
Pin Name Pin Number Description
CE 1
Chip Enable:
H: Enable
L: Disable
Vcc 2 IC signal power supply pin
FB 3 Feedback pin
PGND 4 Power MOSFET GND
LX 5, 6
Switch Pin. Connect external inductor/diode here. Minimize
trace area at this pin to reduce EMI.
GND 7, 8 GND Pin