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Buck/Boost Regulating
Charge Pump in µMAX
IN
3, 4
PGND
6
CXN 7
CXP 8
S1
S2
BUCK-BOOST
CONTROL
MAX1759
SHDN
2
BIAS
1.5MHz
OSC
ENABLE
POK
1
N
GND
5
OUT-LOW
1.235V
1.1V
0.1V
OUT
9
R1
R2
FB
10
Figure 2. Functional Diagram
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