BOM
  • BOM
  • Email
  • LinkedIn
  • Teams
  • WhatsApp

RFQ List

0 Products

Use the + button to add products to your RFQ list.

SUBMIT NOW
  • Home
  • RFQ/EI
  • Products
  • Categories
  • Manufacturers
  • Tools
  • Blog
  • About Us
  • Contact Us

Company

  • About Us
  • Five Strengths
  • Quality Control
  • Certifications
  • Contact Us

Services

  • RFQ
  • EI
  • BOM
  • Solutions
  • Tools

Resources

  • Categories
  • Products
  • Manufacturers
  • Blog
  • News and Events

Legal

  • Privacy Policies
  • Terms of Sale
  • Cookies, Ads & Emails
  • Payment Policy
  • Shipping & Delivery
  • Refund & Return Policy

Contact

[email protected]

Get the latest tech insights

© 2026 YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD). All rights reserved.

  1. Home
  2. /Products
  3. /Integrated Circuits - ICs
  4. /Power Management ICs
  5. /MP4558DQ-LF-P
MP4558DQ-LF-P thumbnail 1
Monolithic Power Systems

MP4558DQ-LF-P

Category
Power Management ICs
Manufacturer
Monolithic Power SystemsDetails
Datasheet
—
Description
1A, 2MHz, 55V Step-Down Converter with Superior Light-Load Efficiency. Available in Automotive (AEC-Q100) and Industrial Grade
Similar Products
—
Quality Control
Authentic & Traceable
Shipping (In-stock)
1-3 business days
Quote Response
Within 24 Hours
Stock Status8430
QuantityMP4558DQ-LF-P
Country

Get Tiered Pricing (Submit RFQ)

Product Details
Key Features

The MP4558 is a high-frequency, step-down switching regulator with an integrated internal high-side high-voltage power MOSFET. It provides up to a 1A output with current-mode control for fast loop response and easy compensation. The wide 3.8V-to-55V input range accommodates a variety of step-down applications, including automotive input. A 12µA shutdown-mode supply current makes it suitable for battery-powered applications. A scaled-down switching frequency in light-load conditions provides high power-conversion efficiency over a wide load range while reducing switching and gate driver losses. The frequency fold-back prevents inductor current runaway during startup and thermal shutdown provides reliable, fault-tolerant operation. By switching at 2MHz, the MP4558 can prevent EMI (electromagnetic interference) noise problems, such as those found in AM radio and ADSL applications. The MP4558 is available in an SOIC8E and a 10-pin 3mm x 3mm QFN package.

Certified Quality & Compliance
Purchase & Inquiry
Secure Packaging
Shipping & Availability
Payment

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.

  • 1. Certification Scope: Quality certifications apply only to the entities, sites and activities listed in valid certificates. Management system certification does not certify each individual product.
  • 2. Product Authenticity: Products must match the agreed manufacturer, part number and condition. Supplier screening and authenticity checks help reduce counterfeit risk.
  • 3. Inspection & Testing: The inspection scope follows product risks and agreed requirements. Additional testing, laboratory arrangements, costs and lead times require written confirmation.
  • 4. Traceability & Documentation: Request conformity certificates, traceability records or test reports before ordering. Document availability, issuer and coverage must be confirmed for the offered goods.
  • 5. Environmental Compliance: RoHS and REACH information is based on applicable manufacturer documentation. Confirm the exact part, declaration date and relevant exemptions before ordering.
  • 6. Handling & Protection: Handling, storage and packaging follow applicable product requirements, including ESD and moisture protection where required. Special handling requirements must be agreed before ordering.
ERAI

Loading related products…

Product FAQ
Purchasing FAQ

What type of component is MP4558DQ-LF-P, and what package does it use?

MP4558DQ-LF-P 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 MP4558DQ-LF-P datasheet above.

Why is dynamic quotation used instead of a fixed price for MP4558DQ-LF-P?

Electronic component spot-market pricing for MP4558DQ-LF-P 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.

What is the delivery timeline after placing an order for MP4558DQ-LF-P?

Lead times for MP4558DQ-LF-P 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…

ISO 9001
ESD Control
Monolithic Power Systems

Loading articles…

New Blog

MK10DN512VLK10: 80-Pin MCU Reorder Control | YG GROUP

Need MK10DN512VLK10 for an existing board? Review the 80-pin package, firmware target and related K10 options. Request a quote for the approved code.

Read more →

STM1831L24WY6F: Threshold and Reorder Fit | YG GROUP

Reordering STM1831L24WY6F? Check the 2.4 V threshold, sense input and delay circuit before accepting a substitute. Request an exact-code quote.

Read more →

LIS2DH12TR: Event Sensing and System Power | YG GROUP

Need LIS2DH12TR for low-power sensing? Review FIFO service limits, system power and two ST alternatives. Request a quote for your project.

Read more →

STKNX: Bus-Power Limits and Node BOM Value | YG GROUP

Cost an STKNX node, not just the IC. Review the shared bus-power budget, supporting BOM and a KNX comparison. Request a quote for approved parts.

Read more →
  • All Categories
  • Discrete Semiconductors
  • Embedded Processors & Controllers
  • Integrated Circuits - ICs
  • Memory ICs
  • Wireless & RF Semiconductors
  • Circuit Protection
  • Connectors
  • Electromechanical
  • Embedded Solutions
  • Optoelectronics
  • Passive Components
  • Power
  • Sensors
  • Wire & Cable
  • Tools & Supplies
  • Uncategorized
  • All Categories
  • Active Filter
  • Amplifier ICs
  • Audio ICs
  • Chipsets
  • Clock & Timer ICs
  • Communication & Networking ICs
  • Counter ICs
  • Data Converter ICs
  • Digital Potentiometer ICs
  • Driver ICs
  • Equalizers
  • Interface ICs
  • Logic ICs
  • Multimedia ICs
  • Optocouplers / Photocouplers
  • Power Management ICs
  • Programmable Logic ICs
  • Security ICs / Authentication ICs
  • Switch ICs
10 similar parts

Loading related products…

Similar products
Hot products
PicturePart NumberManufacturerPDF / RoHSStockAction
MP20042DG-JG-LF-Z
MP20042DG-JG-LF-Z
Monolithic Power Systems
PDF-
4,170
RFQ
MP6909GJ-Z
MP6909GJ-Z
Monolithic Power Systems
--
2,580
RFQ
MPQ9843GLE-5-AEC1-Z
MPQ9843GLE-5-AEC1-Z
Monolithic Power Systems
PDF-
8,890
RFQ
MPQ4334JGRHE-2502-AEC1-P
MPQ4334JGRHE-2502-AEC1-P
Monolithic Power Systems
--
1,430
RFQ
MPQ71017FSGLYT-0000AEC1-Z
MPQ71017FSGLYT-0000AEC1-Z
Monolithic Power Systems
--
8,470
RFQ
MP1530DQ-LF
MP1530DQ-LF
Monolithic Power Systems
--
8,280
RFQ
MPQ2279AGRHE-AEC1-Z
MPQ2279AGRHE-AEC1-Z
Monolithic Power Systems
--
4,650
RFQ
MPQ5850GJ-AEC1-Z
MPQ5850GJ-AEC1-Z
Monolithic Power Systems
--
7,270
RFQ
MP5087AGG-Z
MP5087AGG-Z
Monolithic Power Systems
PDF-
7,710
RFQ
MPQ74201FSGUTE-xxxxAEC1-Z
MPQ74201FSGUTE-xxxxAEC1-Z
Monolithic Power Systems
--
4,210
RFQ