TPS2115ADRBRG4

自动开关MUX AUTOSWITCHING POWER MUX

DESCRIPON

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 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:

   – 120 mΩ Typ TPS2114A

   – 84 mΩ Typ TPS2115A

• Reverse and Cross-Conduction Blocking

• Wide Operating Voltage Range: 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 Times Limit Inrush Current and Minimize Output Voltage Hold-Up Capacitance

• CMOS- and TTL-Compatible Control Inputs

• Manual and Auto-Switching Operating Modes

• 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