
The MPQ4458 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 1 A output with current mode control for fast loop response and easy compensation. The wide 4.5V to 36V input range accommodates a variety of step-down applications, including those in automotive systems. A 100µA operational quiescent current is suitable for use in battery-powered applications. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 4MHz, the MPQ4458 prevents EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. The MPQ4458 is available in thin 10-pin 3x3mm TQFN 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.
MPQ4458DQT-LF-Z 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 MPQ4458DQT-LF-Z datasheet above.
Electronic component spot-market pricing for MPQ4458DQT-LF-Z 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 MPQ4458DQT-LF-Z 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.
Loading articles…
Loading articles…

Buying LP8860HQVFPRQ1 for a vehicle display? Check the H-version 80-mA setup, related drivers and build-based demand. Request a project quote.
Read more →
Sourcing TDA21590 for an AI power BOM? Separate the C2i deal from phase, controller and package choices. Request a quote for your approved build.
Read more →
REF200AU is obsolete with no last-time buy. Check sensor headroom, error limits and LM334 redesign differences, then request a quote for existing builds.
Read more →
Buying SX1302IMLTRT for a gateway? Check RF, power and host requirements, compare SX1303 fine timestamping, and request a project-specific quote.
Read more →Loading related products…
| Picture | Part Number | Manufacturer | PDF / RoHS | Stock | Action |
|---|---|---|---|---|---|
![]() | Monolithic Power Systems | -- | 2,660 | ||
![]() | Monolithic Power Systems | -- | 1,330 | ||
![]() | Monolithic Power Systems | 4,540 | |||
![]() | Monolithic Power Systems | 4,950 | |||
![]() | Monolithic Power Systems | 2,130 | |||
![]() | Monolithic Power Systems | -- | 3,270 | ||
![]() | Monolithic Power Systems | -- | 3,530 | ||
![]() | Monolithic Power Systems | -- | 9,840 | ||
![]() | Monolithic Power Systems | -- | 4,180 | ||
![]() | Monolithic Power Systems | -- | 4,300 |