The Future of Analog IC Technology
DESCRIPTION
The MP4569 is a step-down switching regulator
with integrated high-side/low-side, high-voltage
power MOSFETs. It provides a highly efficient
output of up to 0.3A.
The wide 4.5V to 75V input range
accommodates a variety of step-down
applications in automotive environment. A
3.5μA shutdown mode quiescent current is
good for battery-powered applications.
It allows for high power conversion efficiency
over a wide load range by scaling down the
switching frequency under light-load condition
to reduce the switching and gate driver losses.
The switching frequency during start-up and
short circuit also can be scaled down to prevent
inductor current runaway. Thermal shutdown
provides reliable, fault-tolerant operation.
The MP4569 is available in QFN-10
(3mmx3mm) and SOIC-8 EP packages.
TYPICAL APPLICATION
MP4569
75V, 0.3A Synchronous
Step-Down Converter
FEATURES
• 20μA Quiescent Current (Active mode)
• Wide 4.5V to 75V Operating Input Range
• 1.2Ω/0.45Ω Internal Power MOSFETs
• Programmable Soft-Start
• FB-Tolerance: 1% at Room Temperature;
2% at Full Temperature.
• Adjustable Output
• 1V Reference Voltage Output for QFN
Package
• Low Shutdown Mode Current: 3.5μA
• Available in QFN-10 (3mmx3mm) and
SOIC-8 EP Packages
APPLICATIONS
• Automotive Systems
• Industrial Power Systems
• Distributed Power Systems
• Battery Powered Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP4569 Rev. 1.0
www.MonolithicPower.com
1
9/12/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
