DESCRIPTION
●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 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 Cameras
●• Modems
●• Cell Phones
●• Digital Radios
●• MP3 Players
