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RT9259A Ver la hoja de datos (PDF) - Richtek Technology
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Lista de partido
RT9259A
12V Synchronous Buck PWM DC-DC and Linear Power Controller
Richtek Technology
RT9259A Datasheet PDF : 14 Pages
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RT9259A
Function Block Diagram
VREF
FBL
DRV
Voltage
Reference
REF_OUT
0.8V
V
REF1
VCC12
-
+
+
Inhibit
0.4V
-
+
-
V
REF2
+
Bias
Power
On Reset
5V
Regulator
5VDD
POR
OC
+
Soft-Start
-
&
Fault Logic
0.4V
40uA
SSE
PH_M
-
+
1.5V
RT_DIS
GND
Shutdown
Oscillator
SSE
+
+ EA
-
+
-
PWM
Inhibit
Driver
Logic
FB
COMP
VCC12
OCSET
BOOT
UGATE
PHASE
LGATE
PGND
www.richtek.com
4
DS9259A-02 March 2007
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