MPQ4560 Datasheet, PDF (1/21 Pages) Monolithic Power Systems – Industrial-Grade, 2A, 2MHz, 55V Step-Down Converter Available in AEC-Q100

MPQ4560
Industrial-Grade, 2A, 2MHz, 55V
Step-Down Converter
Available in AEC-Q100
DESCRIPTION
The MPQ4560 is a high-frequency, step-down,
switching regulator with an integrated, high-
side, high-voltage, power MOSFET. It provides
a 2A 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 12µA 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 in light load conditions to
reduce the switching and gate driving losses.
Frequency foldback prevents inductor current
runaway during startup and thermal shutdown
provides reliable, fault tolerant operation.
By switching at 2MHz, the MPQ4560 can
prevent electromagnetic interference problems,
such as those found in AM radio and ADSL
applications.
The MPQ4560 is available in small 3mm x 3mm
QFN10 and SOIC8E packages.
TYPICAL APPLICATION
FEATURES
 Guaranteed Industrial Automotive
Temperature Range Limits
 Wide 3.8V-to-55V Operating Input Range
 250mΩ Internal Power MOSFET
 Up to 2MHz Programmable Switching
Frequency
 140μA Quiescent Current
 Ceramic Capacitor Stable
 Internal Soft-Start
 Up to 95% Efficiency
 Output Adjustable from 0.8V to 52V
 Available in QFN10 (3mmx3mm) and
SOIC8E Packages
 AEC-Q100 Qualified
APPLICATIONS
 High-Voltage Power Conversion
 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.
MPQ4560 Rev. 1.1
www.MonolithicPower.com
1
3/29/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.