Features and Benefits

  • Wide operating voltage range: 8.5 V to 80 V
  • Monitors currents, voltages, and power with ADC
  • Adjustable, 5% accurate current limit: 6 mV to 20 mV
  • Current foldback limits MOSFET power dissipation for overstress protection
  • Monitors VGS and VDS for MOSFET health
  • Peak detect registers for current, voltage, and power
  • Reports input or output power
  • Remote temperature sensing with programmable warning and shutdown thresholds
  • ±1% accurate, 12-bit ADC for IOUT, VIN, and VOUT
  • Available in 39-lead, 7 mm x 7 mm, QFN package

Product Details

The LTC4286 is an integrated solution for hot-swap applications allowing a board to be safely inserted and removed from a live backplane. The circuit breaker timer protects against metal-oxide semiconductor field-effect transistor (MOSFET) overheating, enabling reliable protection against overstress.

The SMBus 3.1 interface, PMBus command structure, and onboard analog-to-digital converter (ADC) with selectable averaging and speed allow monitoring of board current, voltage, power, temperature, and fault status.

The LTC4286 has additional features to respond to input undervoltage (UV) and overvoltage (OV): interrupts the host when a fault occurs, notifies when output power is good, detects insertion of a board, and auto-reboot after a programmable delay following a host commanded turn off.


  • High availability server backplane systems
  • 12 V/24 V/48 V/54 V Distributed power systems
  • Industrial

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 (1)

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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.


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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.