_______________General Description

The MAX667 low-dropout, positive, linear voltage regu-

lator supplies up to 250mA of output current. With no

load, it has a typical quiescent current of 20µA. At

200mA of output current, the input/output voltage differ-

ential is typically 150mV. Other features include a low-

voltage detector to indicate power failure, as well as

early-warning and low-dropout detectors to indicate an

imminent loss of output voltage regulation. A shutdown

control disables the output and puts the circuit into a

low quiescent-current mode.

The MAX667 employs Dual Mode™ operation. One

mode uses internally trimmed feedback resistors to pro-

duce +5V. In the other mode, the output may be varied

from +1.3V to +16V by connecting two external resistors.

The MAX667 is a pin-compatible upgrade to the

MAX666 in most applications where the input voltages

are above +3.5V. Choose the MAX667 when high out-

put currents and/or low dropout voltages are desired,

as well as for improved performance at higher

temperatures.

________________________Applications

Battery-Powered Devices

Pagers and Radio Control Receivers

Portable Instruments

Solar-Powered Instruments

____________________________Features

♦ 350mV Max Dropout at 200mA

♦ 250mA Output Current

♦ Normal Mode: 20µA Typ Quiescent Current

Shutdown Mode: 0.2µA Typ Quiescent Current

♦ Low-Battery Detector

♦ Fixed +5V (Min Component Count) or

Adjustable Output

♦ +3.5V to +16.5V Input

♦ Dropout Detector Output

♦ 10µF Output Capacitor

+5V/Programmable Low-Dropout

Voltage Regulator

________________________________________________________________ Maxim Integrated Products

1

__________________Pin Configuration

__________Typical Operating Circuit

19-3894; Rev 4; 9/08

1

2

3

4

8

7

6

5

IN

LBO

SET

SHDN

GND

LBI

OUT

DD

MAX667

DIP/SO

TOP VIEW

MAX667

GND

SHDN

SET

OUT

+5V OUT

IN

C1

10

μF

+6.3V

BATTERY

PART

TEMP RANGE

PIN-PACKAGE

MAX667CPA

0°C to +70°C

8 Plastic DIP

MAX667CSA

0°C to +70°C

8 SO

MAX667C/D

0°C to +70°C

Dice*

MAX667EPA

-40°C to +85°C

8 Plastic DIP

MAX667ESA

-40°C to +85°C

8 SO

MAX667MJA

-55°C to +125°C

8 CERDIP**

*Contact factory for dice specifications.

**Contact factory for availability and processing to MIL-STD-883.

†Contact factory for availability.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX667MSA/PR

-55°C to +125°C

8 SO†

MAX667MSA/PR-T

-55°C to +125°C

8 SO†

Ordering Information