1FEATURES

2• Two-Input, One-Output Power Multiplexer with

Low rDS(on) Switches:

– 84 mΩ Typ (TPS2113A)

– 120 mΩ Typ (TPS2112A)

• Reverse and Cross-Conduction Blocking

• Wide Operating Voltage: 2.8 V to 5.5 V

• Low Standby Current: 0.5 μA Typ

• Low Operating Current: 55 μA Typ

• Adjustable Current Limit

• Controlled Output Voltage Transition Time:

– Limits Inrush Current

– Minimizes Output Voltage Hold-Up

Capacitance

• CMOS- and TTL-Compatible Control Inputs

• Auto-Switching Operating Mode

• Thermal Shutdown

• Available in TSSOP-8 and 3-mm × 3-mm SON-8

Packages

APPLICATIONS

• PCs

• PDAs

• Digital Cameras

• Modems

• Cell Phones

• Digital Radios

• MP3 Players

DESCRIPTION

The TPS211xA family of power multiplexers enables

seamless transition between two power supplies

(such as a battery and a wall adapter), each

operating at 2.8 V to 5.5 V and delivering up to 2 A,

depending on package. The TPS211xA family

includes extensive protection circuitry, including userprogrammable

current limiting, thermal protection,

inrush current control, seamless supply transition,

cross-conduction blocking, and reverse-conduction

blocking. These features greatly simplify designing

power multiplexer applications.