MP5042 Programmable E-Fuse

Monolithic Power Systems compact, high-performance e-fuse is designed to protect sensitive electronics

Image of MPS MP5042 Programmable E-Fuse The MP5042 from Monolithic Power Systems is a compact, high-performance e-fuse designed to protect sensitive electronics from input transients, output shorts, and overcurrent events. With a wide input voltage range of 4.2 V to 28 V and programmable current limiting from 25 mA to 2 A, the MP5042 offers flexible and reliable protection for a variety of power systems.

Its integrated 115 mΩ power MOSFET, adjustable soft-start via the DV/DT pin, and thermal shutdown with auto-retry make it ideal for space-constrained applications requiring robust power management. The MP5042 is available in a compact TSOT23-6 package, making it a perfect fit for portable and industrial designs.

Features
  • Input voltage range: 4.2 V to 28 V
  • Programmable current limit: 25 mA to 2 A
  • Fixed 260 mA limit when ILIMIT pin is floating
  • Integrated 115 mΩ power MOSFET
  • Configurable soft-start via DV/DT pin
  • Overcurrent protection with hiccup or latch-off
  • Thermal shutdown with auto-retry
  • Fault indication output
  • Compact TSOT23-6 package
Applications
  • Industrial power supplies
  • Telecom and networking equipment
  • Consumer electronics
  • Battery-powered systems
  • USB port protection
  • Hot-swap applications

MP5042 Programmable E-Fuse

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
2A, 28V E-FUSE WITH ADJUSTABLE CMP5042GJ-Z2A, 28V E-FUSE WITH ADJUSTABLE C503 - Immediate
3000 - Factory Stock
$0.67View Details
EVAL BOARD FOR MP5042EV5042-J-00AEVAL BOARD FOR MP50422 - Immediate$22.55View Details
2A, 28V E-FUSE WITH ADJUSTABLE CMP5042GJ-P2A, 28V E-FUSE WITH ADJUSTABLE C0 - Immediate
5000 - Factory Stock
$0.52View Details
Published: 2025-07-08