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TPS2112PW-TPS2112PWG4-TPS2112PWR-TPS2112PWRG4
Dual In/Single Out Autoswitching Power MUX, Auto Sw, Adj. Cur Limit, Adj. Vol Threshold, Sw Status
TPS2112
TPS2113SLVS446 – DECEMBER 2002
AUTOSWITCHING POWER MUX
Actual Size
(3,10 mm x 4,50 mm)
FEATURES Two-Input, One-Output Power Multiplexer
With Low r DS(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 PlayersSTAT
VSNS
ILIM
IN1
OUT
IN2
GND
PW PACKAGE
(TOP VIEW)
DESCRIPTIONThe 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.
TYPICAL APPLICATION
0.1 μF RL
IN1: 2.8 – 5.5 V
IN2: 2.8 – 5.5 V
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