rt8009 Richtek Technology Corporation, rt8009 Datasheet - Page 3

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rt8009

Manufacturer Part Number
rt8009
Description
1.25mhz, 600ma, High Efficiency Step-down Dc/dc Converter
Manufacturer
Richtek Technology Corporation
Datasheet

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Functional Pin Description
Function Block Diagram
DS8009-03 March 2007
Pin Number
FB/VOUT
1
2
3
4
5
VIN
GND
EN
FB/VOUT
LX
Pin Name
Compensation
Amplifier
Slope
Error
COMP
Power Input.
Ground.
Chip Enable (Active High, do not leave EN pin floating, and V
Feedback Input Pin.
Pin for Switching.
RC
Power Good
Detector
UVLO &
Comparator
Shutdown
Current
Control
OSC &
Sense
PWM
EN
V
REF
Detector
Detector
Current
Control
Logic
Limit
Zero
Pin Function
GND
Driver
EN
VIN
< V
RS1
RS2
RT8009
IN
www.richtek.com
+ 0.6V).
LX
3

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