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MAX667

+5V/Programmable Low-Dropout Voltage Regulator

Maxim Integrated 

19-3894; Rev 4; 9/08

+5V/Programmable Low-Dropout

Voltage Regulator

_______________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

__________Typical Operating Circuit

____________________________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

Ordering Information

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**

MAX667MSA/PR

-55°C to +125°C 8 SO†

MAX667MSA/PR-T -55°C to +125°C 8 SO†

*Contact factory for dice specifications.

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

†Contact factory for availability.

__________________Pin Configuration

+6.3V

BATTERY

IN

OUT

MAX667

+5V OUT

C1

10μF

SET GND SHDN

TOP VIEW

DD 1

OUT 2

LBI 3

GND 4

MAX667

DIP/SO

8 IN

7 LBO

6 SET

5 SHDN

TM Dual Mode is a trademark of Maxim Integrated Products.

________________________________________________________________ Maxim Integrated Products 1

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.

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