The Future of Analog IC Technology
The MP2565 is a high frequency step-down
switching regulator with an integrated internal
high-side high voltage power MOSFET. It
provides 2.5A output with current mode control for
fast loop response and easy compensation.
The wide 4.5V to 50V input range accommodates
a variety of step-down applications, including
those in an automotive input environment. A 12µA
shutdown mode supply current allows use in
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
By switching at 4MHz, the MP2565 is able to
prevent EMI (Electromagnetic Interference) noise
problems, such as those found in AM radio and
The MP2565 is available in small 3mm x 3mm
QFN10 and thermally enhanced SOIC8 packages.
2.5A, 4MHz, 50V
• 120μA Quiescent Current
• Wide 4.5V to 50V Operating Input Range
• 220mΩ Internal Power MOSFET
• Up to 4MHz Programmable Switching
• High-Efficiency, Light-Load operation
• Stable with Ceramic Capacitor
• Internal Soft-Start
• Internally Set Current Limit without external
Current Sensing Resistor
• Up to 95% Efficiency
• Output Adjustable from 0.8V to 47V
• Available in 3x3 QFN10 and Thermally
Enhanced SOIC8 Packages
• High Voltage Power Conversion
• Automotive Systems
• Industrial Power Systems
• Distributed Power Systems
• Battery Powered Systems
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive.
For MPS green status, please visit MPS website under Quality
Assurance. “MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
3 EN MP2565 FB 5
70 VIN=36V VIN=24V
MP2565 Rev. 1.01
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