Product details


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Package | Pins | Size

DSBGA (YFQ) 6 0 mm² .85 x 1.25 open-in-new Find other Load switches


  • Input Voltage of 2.8V to 5.3V
  • 0.3A Maximum Switch Current
  • 0.64Ω Typical Total On-Resistance
  • Load Detection
  • Enable/Disable
  • Switch On Indicator
  • Peak Current Limit
  • Thermal Shutdown
  • 6-Bump Thin DSBGA Package

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The LM34902 is a 0.3A PFET switch used to control the input voltage of electronic devices. It is easily integrated into system designs that have a 2.8V to 5.3V voltage rail. Besides the 0.45Ω PFET switch, the LM34902 can be enabled or disabled by a logic signal. The IC monitors the presence of a downstream electronic device via a dedicated pin to decide whether to turn on the PFET switch. A power good signal generated by the IC can be used by system control to determine the status of the switch. The LM34902 also provides over-current and over-temperature protection. The IC comes in a tiny 6-bump Thin DSBGA package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet LM34902 300mA Current Limited Power Switch datasheet (Rev. B) Mar. 29, 2013
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Basics of eFuses (Rev. A) Apr. 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
User guides AN-2266 LM34902/4 Current Limited Power Switch Eval Module (Rev. A) May 06, 2013

Design & development

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Hardware development

document-generic User guide
The Texas Instruments LM34904EVM evaluation module (EVM) helps designers evaluate the performance of the LM34904 current limited power switch. The LM34904 is a 0.5A PFET switch used to control the input voltage of electronic devices. It is easily integrated into system designs that have a 2.8V to (...)
  • Input voltage of 2.8V to 5.3V
  • 0.5A maximum switch current
  • Over-current and over-temperature protection
  • Enable pin
  • Switch on indicator
  • 6-bump micro-SMD package

Design tools & simulation

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 (...)
  • 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

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DSBGA (YFQ) 6 View options

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