AP1509 Просмотр технического описания (PDF) - Diodes Incorporated.
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AP1509 Datasheet PDF : 13 Pages
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AP1509
150KHz, 2A PWM BUCK DC/DC CONVERTER
Pin Descriptions
Pin Name
VIN
Output
GND
FB
SD
Description
Operating voltage input
Switching output
Ground
Output voltage feedback control
ON/OFF Shutdown
Functional Block Diagram
SD
Current
Source
bias
1.235V
Reference
2.5V
Regulator
Start
up
200mV
220mV
+
Com_p
VIN
Comp
+
+
Frequecy
FB
_Amp
compen-
sation
Comp
+
Pre-
driver
2A
Switch
150kH
OSzC.
Thermal
Shutdown
Output
GND
AP1509
Document number: DS31016 Rev. 4 - 2
3 of 13
www.diodes.com
June 2010
© Diodes Incorporated
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