+5V/Programmable Low-Dropout

Voltage Regulator

4

_______________________________________________________________________________________

SHDN

LBO

LBI

+50mV

SET

OUT

DD

GND

IN

A1

C2

C1

1.255V REF

MAX667

Figure 1. MAX667 Block Diagram

MAX667

GND

SHDN

SET

OUT

+5V OUT

250mA

IN

8

64

5

2

C1

10

µF

Figure 2. Fixed +5V Regulator

MAX667

GND

SHDN

OUT

VOUT

IN

LBO

SET

LBI

8

7

3

54

2

6

R2

R1

R3

R4

C1

10

µF

N

VREF

Figure 3. Adjustable Output and Low-Battery Detector