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MP4559DN-LF-P The Monolithic Power Systems MP4559DN-LF-P is a 1.5A, 2MHz DC-DC switching regulator. It functions as a step-down buck converter with an adjustable positive output.
Mfr Part #:

MP4559DN-LF-P

Available from 1 distributors
Mfr Name: Monolithic Power Systems
Monolithic Power Systems
The Monolithic Power Systems MP4559DN-LF-P is a 1.5A, 2MHz DC-DC switching regulator. It functions as a step-down buck converter with an adjustable positive output.
✓ Total Stock: 4,000 pcs
$ Price Range: $1.08

MP4559DN-LF-P Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MP4559DN-LF-P Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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MP4559DN-LF-P Description

Short technical summary and product information.

The MP4559DN-LF-P from Monolithic Power Systems is a DC-DC switching regulator designed for step-down (buck) conversion. It offers a 1.5A output current capability and operates at switching frequencies up to 2MHz, enabling the use of smaller external components. This device features an adjustable positive output voltage and requires a 3.8V input.

 

The regulator is housed in an 8-SOIC package with an exposed pad for enhanced thermal performance, and it is designed for surface mount applications. The operating temperature range is -40°C to 125°C (TJ), making it suitable for various environmental conditions. Its buck topology and synchronous rectifier (No) configuration are key electrical characteristics for efficient power conversion.

 

This component is suitable for power management applications where efficient voltage step-down is required. The adjustable output feature provides design flexibility, while the high switching frequency allows for compact solutions. The surface mount package simplifies integration into printed circuit boards.

MP4559DN-LF-P Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: MP4559DN-LF-P Buck Converter
Subcategory: Voltage Regulators

MP4559DN-LF-P Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MP4559DN-LF-P Estimated Pricing

Qty Low High
1+ $1.08 $1.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

MP4559DN-LF-P Features

  • 1.5A output current capability.
  • Up to 2MHz switching frequency.
  • Adjustable positive output voltage.
  • Surface mount 8-SOIC exposed pad package.
  • Operates from 3.8V input.

MP4559DN-LF-P Applications

  • Efficient DC-DC voltage step-down.
  • Compact power supply designs.
  • Applications requiring adjustable output.
  • Embedded system power management.

MP4559DN-LF-P FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output current of the MP4559DN-LF-P?

The MP4559DN-LF-P has an output current of 1.5A.

What is the switching frequency of this buck converter?

The switching frequency is up to 2MHz.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C (TJ).

What type of package is the MP4559DN-LF-P in?

It is in an 8-SOIC (0.154", 3.90mm Width) Exposed Pad package.

How is the MP4559DN-LF-P mounted?

It is a surface mount device.

Is the RoHS status compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL)?

The Moisture Sensitivity Level is 1 Unlimited.

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