1. Products
  2. Power Monitor, Control, and Protection
  3. Hot Swap Controllers
  4. Low Voltage Hot Swap Controllers
  5. LTC4210-3


Features and Benefits

  • Allows Safe Board Insertion and Removal from a Live Backplane
  • Adjustable Analog Current Limit with Circuit Breaker
  • Fast Response Limits Peak Fault Current
  • Automatic Retry or Latch Off On Current Fault
  • Adjustable Supply Voltage Power-Up Rate
  • High Side Drive for External MOSFET Switch
  • Controls Supply Voltages from 2.7V to 7V
  • Undervoltage Lockout
  • Adjustable Overvoltage Protection
  • Low Profile (1mm) SOT-23 (ThinSOT) Package

Product Details

The LTC4210-3/LTC4210-4 is a 6-pin SOT-23 Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the GATE of an external N-channel MOSFET for a supply voltage ranging from 2.7V to 7V. The LTC4210 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate.

 The LTC4210 features a fast current limit loop providing active current limiting together with a circuit breaker timer. The signal at the ON pin turns the part on and off and is also used for the reset function.

The LTC4210-3 retries on overcurrent fault and the LTC4210-4 latches off on an overcurrent fault.

Vin Range Retry / Latchoff
LTC4210-1 2.7V to 16.5V Retry After Fault
LTC4210-2 2.7V to 16.5V Latch Off After Fault
LTC4210-3 2.7V to 7V Retry After Fault
LTC4210-4 2.7V to 7V Latch Off After Fault


  • Hot Board Insertion
  • Electronic Circuit Breaker
  • Industrial High Side Switch/Circuit Breaker

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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Models for the following parts are available in LTspice:


Product Recommendations

LTC4210-3 Companion Parts

Recommended Related Parts

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LTC4210-3CS6#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-3CS6#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-3IS6#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-3IS6#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-4CS6#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-4CS6#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-4IS6#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC4210-4IS6#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
Wafer Fabrication Data R427 Reliability Data

Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


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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