MP4423H
High Efficiency 3A, 36V,
Synchronous Step Down Converter
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The
MP4423H
is
a
high-frequency,
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Wide 4V to 36V Continuous Operating Input
Range
85mΩ/55mΩ Low RDS(ON) Internal Power
MOSFETs
High-Efficiency Synchronous Mode
Operation
Default 410kHz Switching Frequency
Synchronizes to a 200kHz to 2.2MHz
External Clock
synchronous, rectified, step-down, switch-mode
converter with built-in power MOSFETs. It
offers a very compact solution to achieve a 3A
continuous output current with excellent load
and line regulation over a wide input supply
range. The MP4423H has synchronous mode
operation for higher efficiency over the output
current load range.
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High Duty Cycle for Automotive Cold-crank
Power-Save Mode
Internal Soft-Start
Power Good
OCP Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an QFN-8 (3mmx3mm)
package
Current-mode operation provides fast transient
response and eases loop stabilization.
Full protection features include over-current
protection and thermal shut down.
The MP4423H requires a minimal number of
readily-available standard external components,
and is available in a space-saving QFN-8
(3mmx3mm) package.
APPLICATIONS
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Automotive
Industrial Control System
Distributed Power Systems
All MPS parts are lead-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.
TYPICAL APPLICATION
MP4423H Rev. 1.0
8/18/2014
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
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