For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

_______________General Description

The MAX869L P-channel load switch features an accu-

rate user-set current limit and low on-resistance. This

switch is designed to protect your power source from

shorts and surges by limiting current and preventing

the system supply from being pulled low. The input volt-

age range is 2.7V to 5.5V.

The MAX869L features a 2A, 45m

Ω switch controlled

by a logic signal. Current-limit accuracy is ±21%, and

can be set from 400mA to 2.4A using a single resistor.

The device has a low 12µA quiescent supply current,

which reduces to 2µA max in shutdown. It features ther-

mal-shutdown protection and a logic-signal output pin

(FAULT) that signals when there is an overcurrent or

overtemperature condition.

For other devices in this family, consult the

Selector

Guide.

________________________Applications

Universal Serial Bus (USB)

Notebook Computers

Personal Communicators

Palmtop Computers

Hand-Held Instruments

Portable Medical Instruments

____________________________Features

o Very Small Footprint (16-pin QSOP is the same

size as an 8-pin SO)

o Low Resistance: 45m

Ω at 3V

o ±21%-Accurate, User-Set Current Limit

o 12µA (typ) Quiescent Current

o 0.01µA (typ) Shutdown Current

o 0.04µA (typ) Leakage to Output when Switch

is Off

o 2.7V to 5.5V Input Range

o Thermal Shutdown

o

FAULT Output

2A, Current-Limited, High-Side

P-Channel Switch with Thermal Shutdown

________________________________________________________________

Maxim Integrated Products

1

_____________________Selector Guide

19-1278; Rev 0; 8/97

PART

MAX869LC/D

MAX869LEEE

-40°C to +85°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

Dice*

16 QSOP

______________Ordering Information

__________Typical Operating Circuit

*

Pin Configuration appears at end of data sheet.

300

MAX892L

PART

150

MAX891L

45

MAX869L

AT 3V

(m

Ω)

0.25

0.5

2

NOMINAL

CURRENT

(A)

Single

Single

Single

COUNT

8 µMAX

8 µMAX

16 QSOP

PACKAGE

0.5

8 SO

Dual

150

MAX894L

0.25

8 SO

Dual

300

MAX895L

1

Single

8 SO

90

MAX890L

MAX869L

IN

FAULT

OUT

INPUT

2.7V TO 5.5V

1

0.1

ON/OFF

OUTPUT

UP TO 2A

100k

ON

SET

GND