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TPS22950-Q1
  • TPS22950-Q1
  • TPS22950-Q1
  • TPS22950-Q1

TPS22950-Q1

ACTIVE

Automotive, 5.5-V 2.7-A 34-mΩ load switch with adjustable current limit

Texas Instruments TPS22950-Q1 Product Info

1 April 2026 2

Parameters

Imax (A)

2.7

Vin (max) (V)

5.5

Vin (min) (V)

1.8

Number of channels

1

Features

Inrush current control, Quick output discharge, Reverse current protection, Short circuit protection, Thermal shutdown

Quiescent current (Iq) (typ) (µA)

40

Soft start

Fixed Rise Time

Rating

Automotive

Ron (typ) (mΩ)

34

Shutdown current (ISD) (typ) (µA)

0.2

Current limit type

Adjustable

Function

Adjustable current limit, Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown

FET

Internal

Operating temperature range (°C)

-40 to 125

Device type

Load switches

Package

SOT-23-THN (DDC)-6-8.12 mm² 2.9 x 2.8

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input operating voltage range (VIN): 1.8 V – 5.5 V
  • Output current limit (ILIMIT): 0.05 A – 3.5 A (typ)
  • Thermal shutdown (TSD)
  • ON-resistance (RON):
    • RON at VIN = 5 V: 34 mΩ (typ)
    • RON at VIN = 3.3 V: 41 mΩ (typ)
  • Slow turn-ON timing limits inrush current (typ):
    • tON at VIN = 5 V: 832 µs
    • tON at VIN = 3.3 V: 695 µs
  • Always-ON true reverse current blocking (RCB)
  • Fault indication (FLT)
  • Quick output discharge (QOD): 130 Ω
  • Smart ON pin pulldown (RPD,ON):
    • ON ≥ VIH (ION): 50 nA (max)
    • ON ≤ VIL (RPD,ON): 500 kΩ (typ)
  • Low power consumption:
    • ON state (IQ): 40 µA (typ)
    • OFF state (ISD): 0.2 µA (typ)
  • UL 2367 recognition – file no. E169910
    • Certified from ILIM = 66 mA to 2.46 A
  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input operating voltage range (VIN): 1.8 V – 5.5 V
  • Output current limit (ILIMIT): 0.05 A – 3.5 A (typ)
  • Thermal shutdown (TSD)
  • ON-resistance (RON):
    • RON at VIN = 5 V: 34 mΩ (typ)
    • RON at VIN = 3.3 V: 41 mΩ (typ)
  • Slow turn-ON timing limits inrush current (typ):
    • tON at VIN = 5 V: 832 µs
    • tON at VIN = 3.3 V: 695 µs
  • Always-ON true reverse current blocking (RCB)
  • Fault indication (FLT)
  • Quick output discharge (QOD): 130 Ω
  • Smart ON pin pulldown (RPD,ON):
    • ON ≥ VIH (ION): 50 nA (max)
    • ON ≤ VIL (RPD,ON): 500 kΩ (typ)
  • Low power consumption:
    • ON state (IQ): 40 µA (typ)
    • OFF state (ISD): 0.2 µA (typ)
  • UL 2367 recognition – file no. E169910
    • Certified from ILIM = 66 mA to 2.46 A

Description

The TPS22950-Q1 is a small, single channel load switch with robust protection against fault cases with adjustable output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pulldown is used to keep the ON pin from floating until system sequencing is complete. After the pin is deliberately driven high (>VIH), the smart pulldown is disconnected to prevent unnecessary power loss.

TPS22950-Q1 is available in a standard SOT package characterized for operation over an ambient temperature range of –40°C to 125°C.

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