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TPS22950

ACTIVE

5.5-V, 2-A, 40-mΩ load switch with adjustable current limit

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Data sheet

TPS22950

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Imax (A) 2.7 Ron (typ) (mΩ) 40 Shutdown current (ISD) (typ) (µA) 0.2 Quiescent current (Iq) (typ) (µA) 40 Soft start Fixed Rise Time Current limit type Adjustable Features Quick output discharge, Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 125 FET Internal Device type Load switches Function Adjustable current limit, Inrush current control, Short circuit protection, Thermal shutdown
Number of channels 1 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Imax (A) 2.7 Ron (typ) (mΩ) 40 Shutdown current (ISD) (typ) (µA) 0.2 Quiescent current (Iq) (typ) (µA) 40 Soft start Fixed Rise Time Current limit type Adjustable Features Quick output discharge, Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 125 FET Internal Device type Load switches Function Adjustable current limit, Inrush current control, Short circuit protection, Thermal shutdown
DSBGA (YBH) 6 1.4 mm² 1.4 x 1 SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Input operating voltage range (VIN): 1.8 V–5.5 V
  • Output current limit (ILIMIT): 0.05 A–3.5 A (typ.)

  • TPS22950: Auto-retry current limit response

  • TPS22950L: Latch off current limit response
  • 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: 800 µs
    • tON at VIN = 3.3 V: 550 µs
  • Always-ON reverse current blocking (TPS22950)
  • Fault indication (FLT)
  • Quick output discharge (QOD): 150 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
  • Input operating voltage range (VIN): 1.8 V–5.5 V
  • Output current limit (ILIMIT): 0.05 A–3.5 A (typ.)

  • TPS22950: Auto-retry current limit response

  • TPS22950L: Latch off current limit response
  • 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: 800 µs
    • tON at VIN = 3.3 V: 550 µs
  • Always-ON reverse current blocking (TPS22950)
  • Fault indication (FLT)
  • Quick output discharge (QOD): 150 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

The TPS22950x 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.

The TPS22950/C responds to overcurrent events with auto-retry behavior, while the TPS22950L uses a debounce time and latch off behavior.

TPS22950x is available in a standard WCSP package and leaded SOT package characterized for operation over an ambient temperature range of –40°C to 125°C.

The TPS22950x 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.

The TPS22950/C responds to overcurrent events with auto-retry behavior, while the TPS22950L uses a debounce time and latch off behavior.

TPS22950x is available in a standard WCSP package and leaded SOT package characterized for operation over an ambient temperature range of –40°C to 125°C.
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Technical documentation

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Type Title Date
* Data sheet TPS22950x 5.5-V, 3.2-A, 34-mΩ Adjustable Current Limited Load Switch datasheet (Rev. B) PDF | HTML 28 Feb 2023
Certificate TPS22950LEVM EU RoHS Declaration of Conformity (DoC) 11 Oct 2021
EVM User's guide TPS22950 Evaluation Module PDF | HTML 03 Dec 2020
Certificate TPS22950EVM EU Declaration of Conformity (DoC) 18 Nov 2020
Application brief Current Limit and Short Circuit Protection in Power Restricted Load Switch Apps PDF | HTML 24 Sep 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS22950EVM — TPS22950 5.5-V, 2-A, 40-mΩ load switch with adjustable current limit evaluation module

The TPS22950 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22950. The TPS22950 is an adjustable current limited load switch. The EVM allows the user to configure the TPS22950 mode of operation for evaluation across it's full voltage and current rating. (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS22950LEVM — TPS22950L evaluation module for load switch

The TPS22950LEVM is a two-layer PCB containing the TPS22950L load switch device. The VIN and VOUT connections to the device and the PCB layout routing are capable of handling high continuous currents and provide a low-resistance pathway into and out of the device under test. Test point connections (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS22950 Unencrypted PSpice Transient Model

SLVMDI3.ZIP (46 KB) - PSpice Model
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Simulation model

TPS22950L PSpice Model

SLVMDP7.ZIP (5594 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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DSBGA (YBH) 6 View options
SOT-23-THN (DDC) 6 View options
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