TPS2114PWG4

自动切换电源多路复用器 AUTOSWITCHING POWER MULTIPLEXER

DESCRIPON

The TPS211x family of power multiplexers enables 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. The TPS211x family includes extensive protection circuitry, including user-programmable 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.

FEATURES

• Two-Input, One-Output Power Multiplexer With Low rDSon 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

• Available in a TSSOP-8 Package

APPLICATIONS

• PCs

• PDAs

• Digital Cameras

• Modems

• Cell phones

• Digital Radios

• MP3 Players