BAT

USB

DC_IN

EN

LOUT

VOUT

LiIon Battery

USB Port

DC Adapter

LDO

CAP

GND

Controller

Switched

Load

Always ON

Load

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

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Community

TPS22933

SLVSB34A – OCTOBER 2011 – REVISED JUNE 2015

TPS22933 Triple-Input Power Multiplexer With Auto-Select and Low Drop-Out Voltage

Regulator

1 Features

3 Description

1

•

Three Integrated Load Switches Automatically

power multiplexer with auto-input selection and a low-

Choose Highest Input

dropout linear regulator. The device contains three P-

•

Integrated 3.6-V Fixed LDO

channel MOSFETs that can operate over an input

•

Switched and Always on LDO Outputs

voltage range of 2.5 V to 12 V. The TPS22933

automatically selects the highest level (from BAT,

•

µQFN package 1.5 mm × 1.5 mm

USB, and DC_IN) and enables that input to source

•

Input Voltage Range: 2.5 V to 12 V

the LDO. LOUT is an always-on output from the LDO.

•

The Enable function (EN pin) allows VOUT to be

switched on or off, enables a quick discharge resistor,

–

and is capable of interfacing directly with low-voltage

–

control signals.

•

50-mA Maximum Continuous Current

The TPS22933 is available in a small, space-saving

•

Low Threshold Control Input (EN)

8-pin

µQFN

package

and

is

characterized

for

•

Switchover Time of 18 µs (typical)

operation over the free-air temperature range of

–40ºC to 85ºC.

2 Applications

Device Information(1)

•

Smart Phones

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

GPS Devices

TPS22933

UQFN (8)

1.50 mm × 1.50 mm

•

Digital Cameras

(1) For all available packages, see the orderable addendum at

•

Portable Industrial Equipment

the end of the data sheet.

•

Portable Medical Equipment

•

Portable Media Players

•

Portable Instrumentation

Typical Application Diagram

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.