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Product details

Parameters

Number of channels (#) 1 Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Imax (A) 0.1 Ron (Typ) (mOhm) 300 Shutdown current (ISD) (Typ) (uA) 5 Quiescent current (Iq) (Typ) (uA) 50 Soft start Fixed Rise Time Rise time (Typ) (us) 500 Features Inrush current control, Reverse current protection, Short circuit protection, Thermal shutdown Operating temperature range (C) -40 to 105 open-in-new Find other Load switches

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Load switches

Features

  • 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)

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS22948 5.5-V, 240-mA Current Limited Load Switch with Reverse Current Blocking datasheet (Rev. A) Sep. 27, 2019
Application notes How to Meet the HDMI 5V Source Requirement (Rev. C) Sep. 26, 2019
White papers 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
User guides TPS22948EVM User's Guide Oct. 19, 2018
Application notes Basics of Load Switches (Rev. A) Sep. 05, 2018
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
Application notes Managing Inrush Current (Rev. A) May 28, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
25
Description
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.
Features
  • EVM enables evaluation of the TPS22948 load switch
  • VIN input voltage range: 2.5 V to 5.5 V
  • EVM allows access to the VIN, VOUT, GND, FLT and ON pin of the TPS22948 load switch device
  • Always-ON true reverse current blocking
  • On board CIN and COUT capacitors

Design tools & simulation

SIMULATION MODELS Download
SLVMD59A.ZIP (43 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

Ordering & quality

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