AP1609 Просмотр технического описания (PDF) - Diodes Incorporated.
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AP1609 Datasheet PDF : 8 Pages
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Pin Assignments
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Pin Descriptions
CE 1
Vcc 2
FB 3
PGND 4
AP1609
8 GND
7 GND
6 LX
5 LX
SOP-8L
Pin Pin
Name Number
Description
Chip Enable:
CE
1
H: Enable
L: Disable
Vcc
2
IC signal power supply pin
FB
3
Feedback pin
PGND 4
Power MOSFET GND
Switch Pin. Connect external
LX
5, 6
inductor/diode here. Minimize
trace area at this pin to
reduce EMI.
GND 7, 8
GND Pin
Block Diagram
Vcc
FB
Phase
Compensation
LX
+
+
-
Buffer,
Driver
-
PWM
Comparator
Vref with
CE
CE
PWM/PFM
Controller
Ramp Wave
Generator,
OSC
GND
PGND
AP1609 Rev. 1
2 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated
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