RT9266PX5 Ver la hoja de datos (PDF) - Richtek Technology
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componentes Descripción
Lista de partido
RT9266PX5 Datasheet PDF : 14 Pages
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RT9266
Test Circuit
I (VIN)
VIN
A
C3
100uF
L1
10uH
A I (VDD)
VDD
EN RT9266 LX
EXT GND FB
D1
1N5819
VOUT
C2
3.3V/5V
1uF
R1
1.6M/3M
C4
102
C1
100uF
C5
106
R2
980k/1M
Functional Pin Description
Pin No.
Pin Name Pin Function
RT9266CX5 RT9266CE
1
1
EN
Chip Enable (Active High)
--
2
EXT
Output Pin for Driving External NMOS
5
3
GND
Ground
4
4
LX
Pin for Switching
2
5
VDD
Input Positive Power Pin of RT9266
Feedback Input Pin
3
6
FB
Internal Reference Voltage for the Error Amplifier is 1.25V.
Function Block Diagram
VDD
FB
EN
RT9266
-
1.25V
+
VDD
Loop Control Circuit
Q1
N MOS
R1
R2
Q2
N MOS
Over Temp.
Detector
Shut Down
EXT
LX
GND
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4
DS9266-12 May 2007
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