RT9266B 查看數據表（PDF） - Richtek Technology
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RT9266B Datasheet PDF : 13 Pages
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Functional Pin Description
Pin Name Pin Function
EN
Chip Enable (Active High)
EXT
Output Pin for Driving External NMOS
GND
Ground
LX
Pin for Switching
VDD
Input Positive Power Pin of RT9266B
FB
Feedback Input Pin
Internal Reference Voltage for the Error Amplifier is 1.25V.
RT9266B
Function Block Diagram
VDD
FB
EN
RT9266B
-
1.25V
+
VDD
Loop Control Circuit
Q1
N MOS
R1
R2
Q3
N MOS
Over Temp.
Detector
Shut Down
EXT
LX1
GND
DS9266B-09 March 2007
www.richtek.com
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