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TPS22933
  • TPS22933
  • TPS22933

TPS22933

ACTIVE

3-Input, 2.5-V to 12-V, 2.4-Ω, 0.05-A power mux with LDO

Texas Instruments TPS22933 Product Info

1 April 2026 3

Parameters

Number of input channels

3

IN1, IN2 input voltage (max) (V)

12

IN1, IN2 input voltage (min) (V)

2.5

IN1 output current (max) (A)

0.05

IN2 output current (max) (A)

0.05

Quiescent current (Iq) (µA)

0.7

Imax (A)

0.05

Rating

Catalog

Features

Reverse current blocking

IN1 rDS(on) (typ) (mΩ)

2600

IN2 rDS(on) (typ) (mΩ)

2600

Operating temperature range (°C)

-40 to 85

FET

Internal

Device type

Power muxes

Function

Reverse current blocking

Package

UQFN (RSE)-8-2.25 mm² 1.5 x 1.5

Features

  • 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 (rON)
    • rON = 2.4 Ω at VIN = 5.0 V
    • rON = 2.6 Ω at VIN = 4.2 V
  • 50-mA Maximum Continuous Current
  • Low Threshold Control Input (EN)
  • Switchover Time of 18 µs (typical)
  • 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 (rON)
    • rON = 2.4 Ω at VIN = 5.0 V
    • rON = 2.6 Ω at VIN = 4.2 V
  • 50-mA Maximum Continuous Current
  • Low Threshold Control Input (EN)
  • Switchover Time of 18 µs (typical)

Description

The TPS22933 device is a small, low rON, 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 –40°C to 85°C.

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