home products Semiconductors Power DC-DC Power Conversion MP4559 1.5A, 2MHz, 55V Step-Down Converter with Superior Light-Load Efficiency. Available in Automot
MP4559 1.5A, 2MHz, 55V Step-Down Converter with Superior Light-Load Efficiency. Available in Automotive (AEC-Q100) and Industrial Grade
MP4559

MP4559 1.5A, 2MHz, 55V Step-Down Converter with Superior Light-Load Efficiency. Available in Automotive (AEC-Q100) and Industrial Grade

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Pricing Table

The MP4559 is a high frequency step-down switching regulator with integrated internal high-side high voltage power MOSFET.

Product Detail

The MP4559 is a high frequency step-down switching regulator with integrated internal high-side high voltage power MOSFET. It provides 1.5A 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 those in automotive input environment. A 12? shutdown mode supply current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 2MHz, the MP4559 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. The MP4559 is available in small 3mm x 3mm QFN10 and SOIC8 with exposed pad packages.

Pricing Table

Technical Specification

Vin (min) (V):
3.8
Vin (max) (V):
55
Iout (max) (A):
1.5
Grade:
Catalog
Type:
Switching Regulators
Iq (typ) (mA):
0.14
fsw (max) (kHz):
2000
Special Features:
Programmable Frequency
Vfb (typ) (V):
0.8
Common Features:
Light-Load Efficiency

Additional Documentation

Manufacturer

Monolithic Power Systems (MPS)

Monolithic Power Systems, Inc. (MPS) provides small, highly energy efficient, easy-to-use power solutions for systems found in industrial applications, telecom infrastructures, cloud computing, automotive, and consumer applications.

Learn about Monolithic Power Systems (MPS)

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