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MAX869L

2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown

Low-Resistance P-Channel Switches with Adjustable, Accurate Current Limit Protects Systems and USB

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX869L P-channel load switch features an accurate 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 voltage range is 2.7V to 5.5V.

The MAX869L features a 2A, 45mΩ 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 thermal-shutdown protection and a logic-signal output pin (active-low FAULT) that signals when there is an overcurrent or overtemperature condition.

Data Sheet

Download	Rev 0	(PDF, 91kB)
E-Mail

Key Features

Very Small Footprint (16-pin QSOP is the same size as an 8-pin SO)
Low Resistance: 45mΩ at 3V
±21%-Accurate, User-Set Current Limit
12µA (typ) Quiescent Current
0.01µA (typ) Shutdown Current
0.04µA (typ) Leakage to Output when Switch is Off
2.7V to 5.5V Input Range
Thermal Shutdown
Active-Low FAULT Output

Applications/Uses

Handheld Instruments (PDAs, Palmtops)
Notebook Computers
Palmtop Computers
Personal Communicators
Portable Medical Instrumentation
Universal Serial Bus (USB)

Key Specifications:

Current Limit and USB Power Switches

Part Number

USB

Power Switches

Current Limit
(mA)

Fault Indicator

Current Limit Accuracy
(%)

Current Limit Set By

Lowest Adj. Setting
(A)

R_ON
(Ω)

V_SUPPLY
(V)

Oper. Temp.
(°C)

Package/Pins

Budgetary Price

≥

≤

typ

min

max

See Notes

MAX869L

Yes

2000

Yes

Resistor

0.4

0.038

2.7

5.5

-40 to +85

QSOP/16

$2.15 @1k

See All Current Limit and USB Power Switches (78)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Notes and Comments

45mΩ/2A switch

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1278 Rev 0; 1997-08-01
This page last modified: 2010-01-21