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FAN5233 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN5233
System Electronics Regulator for Mobile PCs
Fairchild Semiconductor
FAN5233 Datasheet PDF : 15 Pages
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FAN5233
Vout
VFB12
CK :3
CK :3
V
e
Ramp
PWM
VREF=2.5V
R
Ramp
16R
–
+
V
e
FAN5233
12V Converter
CLK:3
(30%DC, 100kHz)
S
+
–
PWM
R
CLK:3
Q
Q
DISABLE
PRODUCT SPECIFICATION
+5V
SW12
V
out
Figure 2. FAN5233 12V Internal Block Diagram
VIN
LDO
FAN5233
5V-ALWAYS
5V ALWAYS
Figure 3. FAN5233 5V—ALWAYS Internal Block Diagram
VFB5
8
REV. 1.0.6 1/22/02
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