TPS2110A

自动切换功率 MUX

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 1 A. 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.

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Two-Input, One-Output Power Multiplexer with

Low rDSon Switches:

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84 m Typ TPS2111A

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120 m Typ

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Reverse and Cross-Conduction Blocking

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Wide Operating Voltage Range: 2.8 V to 5.5 V

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Low Standby Current: 0.5 µA Typ

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Low Operating Current: 55 µA Typ

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Adjustable Current Limit

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Controlled Output Voltage Transition Time:

Limits Inrush Current

Minimizes Output Voltage Hold-Up Capacitance

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CMOS- and TTL-Compatible Control Inputs

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Manual and Auto-Switching Operating Modes

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Thermal Shutdown

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Available in a TSSOP-8 Package

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APPLICA ONS

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PCs

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PDAs

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Digital Cameras

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Modems

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Cell Phones

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Digital Radios

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MP3 Players

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