Alternative Parts

  • LT8610A <br>LT8610AB
    LT8610A
    LT8610AB

    42V, 3.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Overview

Features and Benefits

  • 100% Tested at 175°C
  • ±2% Reference Accuracy Over –40°C to 175°C Range
  • Wide Input Voltage Range: 3.7V to 42V
  • Ultralow Quiescent Current Burst Mode® Operation
  • High Efficiency Synchronous Operation:
    • 91% Eff. at 0.5A, at 175°C, 3.3VOUT from 12VIN
    • 92% Eff. at 0.5A, at 175°C, 5VOUT from 12VIN
  • Adjustable and Synchronizable Frequency: 200kHz to 2.2MHz
  • No Thermal Shutdown
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Power Good Flag
  • Small Thermally-Enhanced 16-Lead MSOP Package

Product Details

The LT8610AX is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator rated to 175°C junction temperature. The LT8610AX is 100% tested a 175°C. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency across a wide range of output currents while keeping the output ripple low. A SYNC pin allows synchronization to an external clock. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VIN undervoltage lockout or to shut down the LT8610AX. A capacitor on the TR/SS pin programs the output voltage ramp rate during startup while the PG flag signals when VOUT is within ±9% of the programmed output voltage as well as fault conditions. The LT8610AX is available in small 16-lead MSOP package with exposed pad for low thermal resistance.

Feedback Voltage Min VIN Output Current Notes
LT8610AC-1 0.80V 3.0V 3.5A Fsw = 1.5MHz to 2.2MHz, Optimized Transient Response
LT8610AC 0.80V 3.0V 3.5A Fsw = 200kHz to 2.2MHz
LT8610AB 0.97V 3.4V 3.5A Improved Burst Mode Efficiency
LT8610AX 0.97V 3.4V 3.5A 175°C Max Junction Temp
LT8610A 0.97V 3.4V 3.5A Higher Iout, 30ns Min On Time
LT8610 0.97V 3.4V 2.5A -

Applications

  • Oil and Gas Exploration


Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

LT8610
LT8610A
LT8610AB
LT8610AC

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

LTPowerCAD

Design tools for the following parts are available in LTpowerCAD:

LT8610
LT8610A
LT8610AB

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.

Discussions

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The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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