STELPD01 Integrated Electronic Power Switch

STELPD01 Integrated Electronic Power Switch

STMicroelectronics’ integrated electronic power switch precisely detects and reacts to overcurrent and overvoltage conditions

STMicroelectronics’ STELPD01 is an integrated electronic power switch for power rail protection applications. It is able to precisely detect and react to overcurrent and overvoltage conditions. When an overload condition occurs, the device goes into an open state, disconnecting the load from the power supply. An external power MOSFET can be driven to manage the power loss protection in case of a fault condition. In case of overvoltage on the input, the device regulates the output to a preset 17.5 V value.

Undervoltage lockout prevents the load from malfunctioning, keeping the device off if the rail voltage is too low. The STELPD01 features an adjustable turn-on slew rate, which is useful for keeping the in-rush current under control during startup and hot-swap operations.


  • Wide input voltage range: 4 V to 18 V
  • 17.5 V typical output overvoltage clamp
  • Absolute maximum voltage of 23.5 V
  • 5 A maximum continuous current
  • Adjustable current limit with circuit breaker functionality
  • Thermal protection
  • Input undervoltage lockout
  • Low inrush current during startup
  • Integrated 40 mΩ power FET
  • EN/Fault pin
  • Adjustable slew rate for output voltage
  • Gate control pin for reverse current blocking FET
  • Latch or auto-retry
  • Available in DFN10L (3 mm x 3 mm) package

more information:

Please follow and like us:
Pin Share
About mixos

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

view all posts by admin
Notify of

Inline Feedbacks
View all comments
Get new posts by email:
Get new posts by email:

Join 97,426 other subscribers