TPS22933 Datasheet, PDF (1/25 Pages) Texas Instruments – Triple-Input Power Multiplexer With Auto-Select and Low Drop-Out Voltage Regulator

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TPS22933
SLVSB34A – OCTOBER 2011 – REVISED JUNE 2015
TPS22933 Triple-Input Power Multiplexer With Auto-Select and Low Drop-Out Voltage
Regulator
1 Features
•1 Three Integrated Load Switches Automatically
Choose Highest Input
• Integrated 3.6-V Fixed LDO
• Switched and Always on LDO Outputs
• µQFN package 1.5 mm × 1.5 mm
• Input Voltage Range: 2.5 V to 12 V
• Low ON-Resistance (r_ON)
– r_ON = 2.4 Ω at V_IN = 5.0 V
– r_ON = 2.6 Ω at V_IN = 4.2 V
• 50-mA Maximum Continuous Current
• Low Threshold Control Input (EN)
• Switchover Time of 18 µs (typical)
2 Applications
• Smart Phones
• GPS Devices
• Digital Cameras
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Portable Instrumentation
3 Description
The TPS22933 device is a small, low r_ON, triple-input
power multiplexer with auto-input selection and a low-
dropout linear regulator. The device contains three P-
channel MOSFETs that can operate over an input
voltage range of 2.5 V to 12 V. The TPS22933
automatically selects the highest level (from BAT,
USB, and DC_IN) and enables that input to source
the LDO. LOUT is an always-on output from the LDO.
The Enable function (EN pin) allows VOUT to be
switched on or off, enables a quick discharge resistor,
and is capable of interfacing directly with low-voltage
control signals.
The TPS22933 is available in a small, space-saving
8-pin µQFN package and is characterized for
operation over the free-air temperature range of
–40ºC to 85ºC.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22933
UQFN (8)
1.50 mm × 1.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Diagram
LiIon Battery
USB Port
DC Adapter
Controller
BAT
USB
DC_IN
EN
CAP
LDO
LOUT
VOUT
GND
Switched
Load
Always ON
Load
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.