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LR2257 Datasheet(PDF) 2 Page - Leshan Radio Company

Part # LR2257
Description  AC/DC Current Mode PWM power management controller
PDF  8 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR2257 Datasheet(HTML) 2 Page - Leshan Radio Company

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Pin Name
1：Feedback ： FB
5：Power Output : SW
2：Test Pin ： NC
6：Power Output : SW
3：Test Pin ： NC
7：Ground : Gnd
4：Power ： VDD
8：Ground: Gnd
Pin Description
*Note:
Test2 should connect to Test3 while in application
Pin
Symbol
Pin Description
1
FB
Feedback input
2,3
NC
Test Pin *
4
VDD
Power Supply
5,6
SW
Power Transistor output
7,8
GND
Ground
2/9
LESHAN RADIO COMPANY, LTD.
LR2257



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