_______________General Description

mize battery life by combining ultra-low supply currents

and low dropout voltages. They feature 200mA output

current capability at up to +125°C junction temperature

and come in a 1.5W SOIC package. The 1.5W package

(compared to 0.47W for standard SOIC packages)

allows a wider operating range for the input voltage and

output current. The MAX882/MAX883/MAX884 use a P-

channel MOSFET pass transistor to maintain a low 11µA

(15µA max) supply current from no-load to the full

200mA output. Unlike earlier bipolar regulators, there are

no PNP base current losses that increase with output

current. And, in dropout, the MOSFET does not suffer

from excessive base currents that occur when PNP tran-

sistors go into saturation. Typical dropout voltages are

220mV at 5V and 200mA, or 320mV at 3.3V and 200mA.

The MAX882 features a 7µA standby mode that disables

the output but keeps the reference, low-battery compara-

tor, and biasing circuitry alive. The MAX883/MAX884 fea-

ture a shutdown (OFF) mode that turns off all circuitry,

reducing supply current to less than 1µA. All three

devices include a low-battery-detection comparator, fold-

back current limiting, reverse-current protection, and

thermal overload protection.

The output is preset at 3.3V for the MAX882/MAX884

and 5V for the MAX883. In addition, all devices employ

Dual Mode™ operation, allowing user-adjustable outputs

from 1.25V to 11V using external resistors. The input volt-

age supply range is 2.7V to 11.5V.

For low-dropout linear regulators with output currents up

to 500mA, refer to the MAX603/MAX604 data sheet.

________________________Applications

Pagers and Cellular Phones

3.3V and 5V Regulators

1.25V to 11V Adjustable Regulators

High-Efficiency Linear Regulators

Battery-Powered Devices

Portable Instruments

Solar-Powered Instruments

____________________________Features

o Guaranteed 200mA Output Current at

o High-Power (1.5W) 8-Pin SO Package

o Dual Mode™ Operation: Fixed or Adjustable

Output from 1.25V to 11V

o Large Input Range (2.7V to 11.5V)

o Internal 1.1

Ω P-Channel Pass Transistor

Draws No Base Current

o Low 220mV Dropout Voltage at 200mA

Output Current

o 11µA Typical Quiescent Current

o 1µA (max) Shutdown Mode or 7µA (typ)

Standby Mode

o Low-Battery Detection Comparator

o Reverse-Current Protection

o Thermal Overload Protection

______________Ordering Information

5V/3.3V or Adjustable, Low-Dropout,

________________________________________________________________

Maxim Integrated Products

1

__________________Pin Configuration

__________Typical Operating Circuit

Call toll free 1-800-998-8800 for free samples or literature.

19-0275; Rev 0; 12/94

PART

MAX882CPA

MAX882CSA

MAX882C/D

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

8 Plastic DIP

8 SO

Dice*

Ordering Information continued at end of data sheet.

** Contact factory for availability.

MAX882EPA

-40°C to +85°C

8 Plastic DIP

MAX882ESA

-40°C to +85°C

8 SO

MAX882MJA

-55°C to +125°C

8 CERDIP**

™

Dual-Mode is a trademark of Maxim Integrated Products.

MAX882

MAX883

MAX884

O.1

µF

2.2

µF

OUTPUT

VOLTAGE

INPUT

VOLTAGE

BATTERY

LBI

OFF (STBY)

( ) ARE FOR MAX882

IN

OUT

GND

SET

ON/OFF

LBI

OFF (STBY)

( ) ARE FOR MAX882

GND

IN

OUT

GND

SET

LBO

DIP/SO

TOP VIEW

1

2

3

4

8

7

6

5

MAX882

MAX883

MAX884