+5V/Programmable Low-Dropout
Voltage Regulator
IN
OUT
DD
SHDN
A1
LBO
C2
LBI
GND
Figure 1. MAX667 Block Diagram
1.255V REF
SET
C1
+50mV
MAX667
8 IN
OUT 2
MAX667
+5V OUT
250mA
C1
10µF
SET GND SHDN
6
4
5
8 IN
7 LBO
N
R3
3 LBI
MAX667
OUT 2
VREF
VOUT
C1
10µF
R2
SET 6
R4
SHDN GND
R1
5
4
Figure 2. Fixed +5V Regulator
Figure 3. Adjustable Output and Low-Battery Detector
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