DESCRIPTION

· The TPS211x family of power multiplexers facilitates seamless transition between two power supplies, such as a battery and a wall adapter, each operating at 2.8-5.5 V and delivering up to 1 A. It includes extensive protection circuitry, including user-programmable current limiting, thermal protection, inrush current control, seamless supply transition, cross-conduction blocking, and reverse-conduction blocking.

FEATURES

· Available in a TSSOP-8 Package
· Two-Input, One-Output Power Multiplexer with Low rDS(on) Switches: 84 mΩ Typ (TPS2115), 120 mΩ Typ (TPS2114)
· Reverse and Cross-Conduction Blocking
· Wide Operating Voltage Range: 2.8 V to 5.5 V
· Low Standby Current: 0.5 µA Typical
· Low Operating Current: 55 µA Typical
· Adjustable Current Limit
· Controlled Output Voltage Transition Times, Limits Inrush Current and Minimizes Output Voltage Hold-Up Capacitance
· CMOS and TTL Compatible Control Inputs
· Manual and Auto-Switching Operating Modes
· Thermal Shutdown

APPLICATIONS

· PCs
· PDAs
· Digital Cameras
· Modems
· Cell Phones
· Digital Radios
· MP3 Players