TPS2112A - Texas Instruments

TPS2112A Autoswitching Power 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 2 A, depending on package. The TPS211xA family includes extensive protection circuitry, including userprogrammable current limiting, thermal protection, inrush current c.

Features

1
•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 Came.