Features and Benefits

  • Single Inductor Buck-Boost Architecture
  • Low Noise Buck-Boost Architecture
  • Wide VIN Range 1.8V to 5.5V
  • Adjustable VOUT Range 1.8V to 5.5V
  • 5A of Continuous Output Current with VIN > VOUT
  • Up to 95% Efficiency
  • Selectable Internal 2.2MHz Fixed Frequency Adjustable and Synchronizable: Up to 4MHz
  • Burst Mode® IQ 15μA for High Efficiency at Light Loads
  • Programmable Soft-Start and VIN UVLO
  • Simple Solution with Minimal External Components

Product Details

The LT3154 is a highly efficient, high current, buck‑boost DC/DC converter that operates from input voltages above, below or equal to the regulated output voltage. The LT3154’s advanced topology provides a continuous transfer through all operating modes. VIN operation from 1.8V to 5.5V provides flexibility for a wide variety of power sources. The output voltage is adjustable between 1.8V to 5.5V.

To minimize external components the LT3154 can be configured to operate from a 2.2MHz internal oscillator. To optimize applications for highest efficiency or smallest footprint the oscillator can be programmed between 400kHz to 4MHz, or synchronized to an external clock for noise sensitive circuits.

Selectable Burst Mode operation reduces quiescent current to 15μA, ensuring high efficiency across the entire load range. The VIN start-up threshold (UVLO) can be adjusted for various input sources. An internal or externally programmable soft-start limits inrush current during start-up. Other features include <1μA shutdown current, short circuit, and thermal overload protection. The LT3154 is housed in the thermally enhanced 16-lead (3mm × 3mm × 0.75mm) LQFN package.


  • Portable Inventory Terminals
  • Handheld Computers
  • Medical and Industrial Instruments
  • Wireless RF Transmitter
  • Backup Power Applications
  • Battery Powered Systems

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Tools & Simulations


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Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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