ꢀꢁ ꢂ ꢃꢄꢄꢃ ꢅ
ꢀꢁ ꢂ ꢃꢄꢄꢆ ꢅ
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SBVS045A − MARCH 2004 − REVISED FEBRUARY 2006
ꢅ ꢇ ꢀ ꢈꢂ ꢉꢊ ꢀꢋꢌ ꢊꢍ ꢎ ꢁ ꢈꢉꢏ ꢐ ꢑ ꢇꢒ
FEATURES
APPLICATIONS
D
Two-Input, One-Output Power Multiplexer
With Low r Switches:
D
D
D
D
D
D
D
PCs
DS(on)
PDAs
− 84 mΩ Typ (TPS2113A)
− 120 mΩ Typ (TPS2112A)
Reverse and Cross-Conduction Blocking
Digital Cameras
Modems
D
D
D
D
D
D
Wide Operating Voltage Range . . . .2.8 V to
5.5 V
Cell Phones
Digital Radios
MP3 Players
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,
Limits Inrush Current and Minimizes Output
Voltage Hold-Up Capacitance
DRB PACKAGE
(TOP VIEW)
1
8
7
6
5
STAT
EN
IN1
STAT
EN
1
2
3
4
8
7
6
5
IN1
D
D
D
D
CMOS- and TTL-Compatible Control Inputs
Auto-Switching Operating Mode
Thermal Shutdown
2
3
4
OUT
IN2
OUT
IN2
GND
VSNS
ILIM
VSNS
ILIM
GND
GND
Available in TSSOP-8 and 3mm x 3mm SON-8
Packages
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 2.8−5.5 V and delivering up to 1 A. 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.
TYPICAL APPLICATION
Switch
Status
IN1: 2.8 − 5.5 V
R1
TPS2113APW
0.1 µF
1
2
3
4
8
7
IN1
STAT
EN
OUT
6
5
IN2
VSNS
ILIM
C
R
L
L
GND
R
ILIM
IN2: 2.8 − 5.5 V
0.1 µF
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