FAN5230 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN5230 Datasheet PDF : 16 Pages
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FAN5230
Vout
VFB12
CK :3
CK :3
Ve
Ramp
PWM
VREF=2.5V
R
Ramp
16R
–
+
Ve
FAN5230
12V Converter
CLK:3
(30%DC, 100kHz)
S
+
–
PWM
R
CLK:3
Q
Q
DISABLE
+5
SW12
V out
Figure 2. FAN5230 12V Internal Block Diagram
3.3V ALWAYS
VIN
LDO
LDO
FAN5230
5V/3.3V-ALWAYS
5V ALWAYS
VFB5
Figure 3. FAN5230 5V/3.3V—ALWAYS Internal Block Diagram
8
REV. 2.8.5 10/17/01
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