TPS2115A-Q1
www.ti.com ........................................................................................................................................................................................... SBVS124–NOVEMBER 2008
AUTO-SWITCHING POWER MULTIPLEXER
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FEATURES
APPLICATIONS
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PCs
PDAs
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Qualified for Automotive Applications
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Two-Input One-Output Power Multiplexer With
Low rDS(on) Switch...84 mΩ (Typ)
Digital Cameras
Modems
Cell Phones
Digital Radios
MP3 Players
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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
PW PACKAGE
(TOP VIEW)
Controlled Output Voltage Transition Times
Limit Inrush Current and Minimize Output
Voltage Hold-Up Capacitance
1
2
3
4
8
7
6
5
STAT
D0
IN1
OUT
IN2
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CMOS- and TTL-Compatible Control Inputs
Manual and Auto-Switching Operating Modes
Thermal Shutdown
D1
ILIM
GND
Available in TSSOP-8 (PW) Package
DESCRIPTION/ORDERING INFORMATION
The TPS2115A power multiplexer 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 TPS2115A 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.
Switch Status
IN1
2.8 V to 5.5 V
TPS2115A
R1
0.1 µF
1
2
3
4
8
7
6
5
IN1
OUT
IN2
STAT
D0
NC
D1
R
L
C
L
ILIM
GND
R
ILIM
IN2
2.8 V to 5.5 V
C2
0.1 µF
Figure 1. Typical Application
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated