SMPS

OFF

ON

TPS22920

V

OUT

R

L

C

L

GND

ON

GND

C

IN

V

IN

TPS22920

www.ti.com

SLVSAY8A – JUNE 2011 – REVISED JULY 2013

Ultra-Low On-Resistance, 4-A Integrated Load Switch with Controlled Turn-on

Check for Samples: TPS22920

1

FEATURES

DESCRIPTION

•

Integrated Load Switch

with controlled turn on. The device contains a N-

•

Input Voltage Range: 0.75-V to 3.6-V

channel MOSFET that can operate over an input

•

voltage range of 0.75 V to 3.6 V and switch currents

up to 4-A. An integrated charge pump biases the

•

Ultra-Low ON-Resistance

NMOS switch in order to achieve a minimum switch

–

–

on/off input (ON), which is capable of interfacing

directly with low-voltage control signals.

–

–

The TPS22920 has a 1250-

Ω on-chip load resistor for

quick output discharge when the switch is turned off.

–

–

The TPS22920 has an internally controlled rise time

in order to reduce inrush current. The TPS22920

•

Ultra Small CSP-8 package 0.9mm×1.9mm,

features a rise time of 880

μS at 3.6-V.

0.5mm pitch

The TPS22920 is available in an ultra-small, space-

•

4-A Maximum Continuous Switch Current

saving 8-pin CSP package and is characterized for

•

Shutdown Current 5.5-µA max

operation over the free-air temperature range of

•

Low Threshold Control Input

–40°C to 85°C.

•

Controlled slew- rate to avoid inrush current

•

Quick Output Discharge Transistor

•

ESD Performance Tested Per JESD 22

–

4000-V Human-Body Model

(A114-B, Class II)

–

1000-V Charged-Device Model (C101)

Figure 1. Typical Application

APPLICATIONS

•

Notebook / Netbook Computer

•

Tablet PC

•

PDAs / Smartphones

•

GPS Navigation Devices

•

MP3 Players

FEATURE LIST

RISE TIME

QUICK OUTPUT

MAXIMUM OUTPUT CURRENT

ENABLE

at 3.6 V

(typ) at 3.6V

TPS22920

5.3- m

Ω

880 µS

Yes

4-A

Active High

(1)

This feature discharges the output of the switch to ground through a 1250-

Ω resistor, preventing the output from floating. See

Application section ‘Output Pull-Down’

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2011–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.