Picor® Cool-Swap®
Hot-Swap / Circuit-Breaker Controller

Not recommended for new designs.



The PI2211 is a Hot-Swap / circuit-breaker controller for bus voltages of 0.9 to 14 V. Unlike conventional
Hot-Swap controllers, the PI2211 incorporates True-SOA MOSFET protection which emulates the transient thermal performance of the MOSFET ensuring safe operation. Typical Hot-Swap devices utilize the power limiting based upon standard SOA curves not taking into account transient performance issues. Only the PI2211 with True-SOA emulates and protects the MOSFET under its actual operating conditions taking into account transient events.

Input Voltage   0.9 – 14 V
Tj Operating
Temp Range
  -40°C to +125°C
Circuit breaker
fault detection time
  100 nS
Dimensions   4  x 4  x 0.85 mm



PDF Icon Data Sheet »



Compatible Converters

The Cool-Swap® – Hot-Swap / Circuit Breaker Controller – works in conjunction with a specific set of Vicor converters to deliver optimal efficiency, power and protection.
To easily view the appropriate converter components needed for the desired Cool-Swap please use the PowerBench Solution Selector tool to locate compatible offerings.

Use the matrix below to select a module to meet your needs. You can click on the filter icons at the top of each column to filter results. Click on the column heading to sort the column. Once you have made your selection click on the add to cart option to purchase prototype quantities.


Part Number
Filter Column
Vin Operating Range
Filter Column
Fault Detect Time
Filter Column
Package Size
Filter Column
RoHS Compliant

Purchase Online
PI2211 0.9 – 14 V 100 nS 24-Pin QFN / 4 x 4 x 0.85 Add to Cart  »
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Features & Benefits
  • 0.9 to 14V operating (21V max) Bus Hot Swap Controller with circuit breaker
  • Digitally emulates MOSFET transient thermal performance for True-SOA control
  • Ensures safe DC and transient MOSFET performance by emulating the MOSFET junction temperature rise via a internal digital processor
  • Limits transient over voltage exposure after breaker event with Glitch-Catcher control
Typical Application

Click to enlarge image.


Packaging Options

24-Pin QFN / 4 mm x 4 mm x 0.85 mm

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Evaluation Boards

Description   Part
  User Guide    
PI2211, Evaluation Board   PI2211-EVAL1                   PDF