DESCRIPTION
●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 rDS(on) Switches:
● – 84 mΩ Typ (TPS2113)
● – 120 mΩ Typ (TPS2112)
● 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, Limits Inrush Current and Minimizes Output Voltage Hold-Up Capacitance
● CMOS and TTL Compatible Control Inputs
● Auto-Switching Operating Mode
● Thermal Shutdown
● Available in a TSSOP-8 Package
●APPLICATIONS
● PCs
● PDAs
● Digital Cameras
● Modems
● Cell phones
● Digital Radios
● MP3 Players
