
The MP5021B is a hot-swap protection device designed to protect circuitry on its output from transients on its input. Also, it protects its input from undesired shorts and transients coming from its output. At start-up, the slew rate at the output limits the inrush current. An external capacitor at SS controls the slew rate.The maximum output load is current limited using a sense FET topology where a low-power resistor from ISET to ground controls the magnitude of the current limit. An internal charge pump drives the gate of the power device, allowing a power FET with a very low on resistance of 7 mΩ.The MP5021B includes an IMON option to produce a voltage proportional to the current through the power device, as set by a resistor from IMON to ground. The MP5021B includes an optional discharge function that provides a discharge path for the external output capacitor when the part is disabled. Fault protections include current-limit protection, thermal shutdown, and damaged MOSFET detection. Both the current limit and thermal shutdown have user-settable auto-retry and latch-off mode. Also, the device features over-voltage protection (OVP) and under-voltage protection (UVP).The MP5021B is available in a 3mm x 5mm QFN package.
YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
MP5021B is an authentic electronic component manufactured by Monolithic Power Systems, categorized under Power Management ICs. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official MP5021B datasheet above.
Electronic component spot-market pricing for MP5021B fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for MP5021B depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
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