Overview

Features and Benefits

  • Pin-Selectable Pass-Thru or Fixed Output CCM, DCM, Burst Mode® Operation
  • Programmable Non-Switching Pass-Thru Window
  • 18μA Pass-Thru Mode IQ with 99.9% Efficiency
  • VIN Range: 2.8V to 100V (4.5V for Start-Up)
  • VOUT Range: 1V to 100V
  • Reverse Input Protection to –40V
  • ±1.25% Output Voltage Accuracy (–40°C to 125°C)
  • ±3% Accurate Current Monitoring
  • ±5% Accurate Current Regulation
  • 10V Quad N-Channel MOSFET Gate Drivers
  • EXTVCC LDO Powers Drivers from VOUT/External Rail
  • ±20% Cycle-by-Cycle Inductor Current Limit
  • No Top MOSFET Refresh Noise in Buck or Boost
  • Fixed/Phase-Lockable Frequency: 80kHz to 400kHz
  • Spread Spectrum Frequency Modulation for Low EMI
  • Power Good Output Voltage/Overcurrent Monitor
  • Available in a 38-Lead TSSOP and 40-Lead (6mm x 6mm) QFN Packages

Product Details

The LT8210 is a 4-switch synchronous buck-boost DC/DC controller that can operate in pass-thru, forced continuous, pulse-skipping and Burst Mode® operation. Pass-Thru is a feature that passes the input directly to the output when the input is within a user programmable window. Pass-Thru mode eliminates switching losses and EMI along with maximizing efficiency. For input voltages above or below the pass-thru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively.

The GATEVCC driver supply is regulated to 10.6V allowing the use of standard-level MOSFETs and can be powered through the EXTVCC pin for improved efficiency. The GATEVCC regulator is back-drive-protected to ride through input brownouts while maintaining regulation. Optional reverse input protection down to –40V can be implemented with the addition of a single N-channel MOSFET. The LT8210 includes a precision current sense amplifier that can accurately monitor and limit output or input average current.

Applications

  • Automotive, Industrial, Telecom, Avionics Systems
  • Automotive Start-Stop, Emergency Call Applications
  • ISO 7637, ISO 16750, MIL-1275, DO-160 Applications

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.

Evaluation Kits (3)

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice

Models for the following parts are available in LTspice:

LT8210

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.

PCN-PDN Information

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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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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.