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TPS22948

ACTIVE

5.5-V, 0.24-A, 300-mΩ, load switch with reverse current blocking

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Data sheet

TPS22948

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Imax (A) 0.1 Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 5 Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Current limit type Fixed Features Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown
Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Imax (A) 0.1 Ron (typ) (mΩ) 300 Shutdown current (ISD) (typ) (µA) 5 Quiescent current (Iq) (typ) (µA) 50 Soft start Fixed Rise Time Current limit type Fixed Features Reverse current protection, Short circuit protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking, Short circuit protection, Thermal shutdown
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • Input operating voltage range (VIN):
    2.5 V to 5.5 V
  • Output current limit (ILIMIT):
    240 mA (typical)
  • Thermal shutdown (TSD)
  • ON-Resistance (RON):
    300 mΩ (typical)
  • Slow Turn ON timing limits inrush current (typical):
    • Turn ON time (tON):
      820 us at 6.6 mV/µs
  • Always-ON Reverse Current Blocking (RCB):
    • ON State activation current (IRCB):
      –200 mA (typical)
  • Fault indication (FLT)
  • Smart ON pin pull down (RPD,ON):
    • ON VIH (ION): 25 nA (maximum)
    • ON VIL (RPD,ON): 500 kΩ (typical)
  • Low power consumption:
    • ON State (IQ): 50 uA (typical)
    • OFF State (ISD): 0.3 uA (typical)
  • Input operating voltage range (VIN):
    2.5 V to 5.5 V
  • Output current limit (ILIMIT):
    240 mA (typical)
  • Thermal shutdown (TSD)
  • ON-Resistance (RON):
    300 mΩ (typical)
  • Slow Turn ON timing limits inrush current (typical):
    • Turn ON time (tON):
      820 us at 6.6 mV/µs
  • Always-ON Reverse Current Blocking (RCB):
    • ON State activation current (IRCB):
      –200 mA (typical)
  • Fault indication (FLT)
  • Smart ON pin pull down (RPD,ON):
    • ON VIH (ION): 25 nA (maximum)
    • ON VIL (RPD,ON): 500 kΩ (typical)
  • Low power consumption:
    • ON State (IQ): 50 uA (typical)
    • OFF State (ISD): 0.3 uA (typical)

The TPS22948 device is a small, single channel load switch with robust protection against fault cases with 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 pull down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull down will be disconnected to prevent unnecessary power loss. ™

TPS22948 is available in a standard SC-70 package characterized for operation over a temperature range of –40°C to 125°C.

The TPS22948 device is a small, single channel load switch with robust protection against fault cases with 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 pull down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull down will be disconnected to prevent unnecessary power loss. ™

TPS22948 is available in a standard SC-70 package characterized for operation over a temperature range of –40°C to 125°C.
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Technical documentation

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Type Title Date
* Data sheet TPS22948 5.5-V, 240-mA Current Limited Load Switch with Reverse Current Blocking datasheet (Rev. A) PDF | HTML 27 Sep 2019
Application note How to Meet the HDMI 5V Source Requirement (Rev. C) 26 Sep 2019
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
EVM User's guide TPS22948EVM User's Guide 19 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 2018
Application note Managing Inrush Current (Rev. A) 28 May 2015

Design & development

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Evaluation board

TPS22948EVM — TPS22948 5.5V, 0.3A, Current limited load switch evaluation module

The TPS22948 evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22948 load switches. The TPS22948EVM allows the user to apply different input voltages (1.6 V to 5.5 V) under different loading conditions (0 A to 0.3 A) to the TPS22948 device. Parameters such as the (...)

User guide: PDF
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Simulation model

TPS22948 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD59A.ZIP (43 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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