Effective Inventory5,433

Step-down converter with 2.5A output

  • Manufacturer Part # : TPS54240DGQ

  • Package/Case: HVSSOP (DGQ)-10

  • Part Status : ACTIVE

  • Brand: Texas Instruments

  • Product Categories : Voltage Regulators - DC DC Switching Regulators

Quality Assurance

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

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We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

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About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.











Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.



Tape and Reel

Tape and Reel

Cut Tape

Cut Tape

Tube or Tray

Tube or Tray

TPS54240DGQ DataSheet


Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Quick Inquiry

Please submit RFQ for TPS54240DGQ or email to us: Email: [email protected], we will contact you in 12 hours.


One of the standout features of the TPS54240DGQ is its high level of integration, with built-in power MOSFETs, feedback loop compensation, and thermal shutdown protection. This ensures reliable and stable performance in a compact and thermally enhanced 10-pin MSOP package, ideal for space-constrained designs


Key Features

  • The TPS54240DGQ is a synchronous buck converter with an input voltage range of 4
  • 5V to 28V and an output voltage range of 0
  • 76V to 14V
  • It has a wide operating temperature range of -40°C to 125°C, 95% efficiency at full load, adjustable soft-start capability, short-circuit protection, and thermal shutdown protection
  • Application

  • Power supplies for industrial equipment
  • Power supplies for telecommunications equipment
  • Power supplies for networking equipment
  • Power supplies for consumer electronics
  • Power supplies for automotive systems
  • Power supplies for battery charging
  • Power supplies for LED lighting applications
  • Specifications

    The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

    Vin (min) (V) 3.5 Vin (max) (V) 42
    Vout (min) (V) 0.8 Vout (max) (V) 39
    Iout (max) (A) 2.5 Iq (typ) (mA) 0.138
    Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500
    Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable Operating temperature range (°C) -40 to 125
    Rating Catalog Regulated outputs (#) 1
    Control mode current mode Duty cycle (max) (%) 98
    Type Converter

    Datasheet PDF

    Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

    Preliminary Specification TPS54240DGQ PDF Download


    What is TPS54240DGQ?

    The TPS54240DGQ is a synchronous step-down DC-DC converter designed by Texas Instruments. It is ideal for applications requiring efficient power conversion with high voltage input capability, such as industrial control systems, automotive electronics, and battery-powered devices.

    How Does TPS54240DGQ Work?

    The TPS54240DGQ operates by converting a higher input voltage to a lower regulated output voltage with high efficiency. It utilizes a synchronous buck topology to step down the voltage and regulate the output. The converter features pulse-width modulation (PWM) control for precise voltage regulation and current limiting for overload protection.

    How Many Pins does TPS54240DGQ have and What are the Functions of the Pinout Configuration?

    The TPS54240DGQ is housed in a 10-pin MSOP (Mini Small Outline Package) package. The pinout configuration includes:

    • SW: Switching node for the power stage.
    • FB: Feedback pin for output voltage regulation.
    • EN: Enable pin for controlling the converter operation.
    • PGND: Power ground pin.
    • PH: Phase compensation pin.
    • VFB: Internal feedback voltage pin.
    • VSENSE: Current sensing pin.
    • COMP: External compensation pin.
    • DRV: Gate driver pin for the MOSFET.
    • VOUT: Regulated output voltage.

    What are the Pros and Cons of TPS54240DGQ?


    • High Efficiency: Provides efficient power conversion, reducing power losses.
    • Wide Input Voltage Range: Suitable for applications with varying input voltage levels.
    • Current Limiting: Offers overload protection with current limiting capability.
    • Compact Package: 10-pin MSOP package is compact and space-efficient.
    • Adjustable Output Voltage: Allows for flexibility in output voltage selection.


    • External Components: May require additional external components for specific application requirements.
    • Complexity: Synchronous buck converters like the TPS54240DGQ may require careful design considerations for optimal performance.
    • Heat Dissipation: High-efficiency converters may generate some heat under heavy load conditions.

    Are There Any Equivalents/Alternatives to TPS54240DGQ for Recommendation?

    • The LM2675 from Texas Instruments is a similar synchronous step-down converter with slightly different features.
    • Alternatives to the TPS54240DGQ include the MP2307 from Monolithic Power Systems and the LT1370 from Analog Devices.

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