High-Efficiency, 4A, 18V, 500kHz
Synchronous Step-Down Converter
The MP2224 is a high-efficiency, synchronous,
rectified, step-down, switch-mode converter
with built-in power MOSFETs. It offers a very
compact solution to achieve a 4A output current
with excellent load and line regulation over a
wide input supply range. The MP2224 has
synchronous mode operation for higher
efficiency over the output current load range.
Current-mode operation provides fast transient
response and eases loop stabilization.
Full protection features include over-current
protection and thermal shutdown.
The MP2224 requires a minimal number of
readily available, standard, external
components and is available in a space-saving
8-pin TSOT23 package.
Wide 4.5V to 18V Operating Input Range
Adjustable Output Voltage as low as 0.6V
Low 70mΩ/25mΩ RDS(ON) of Internal Power
High Efficiency up to 97%
Fixed 500kHz Switching Frequency
Synchronizes from a 200kHz to 2MHz
2.4ms Internal Soft-Start Time
1% Reference Accuracy at Room
Internal Power-Save Mode
OCP with Hiccup Mode
Available in 8-pin TSOT23
Flat-Panel Television and Monitors
Notebook Systems and I/O Power
Digital Set-Top Boxes
Distributed Power Systems
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power S ystems, Inc.
MP2224 Rev. 1.0
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