4A Synchronous Step-down
Converter with SS & PG
The Future of Analog IC Technology
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
The MP2184 is a monolithic, step-down, switch-
mode converter with built-in internal power
MOSFETs. It achieves 4A continuous output
current from a 2.5V-to-5.5V input voltage with
excellent load and line regulation. The output
voltage can be regulated to as low as 0.6V.
The Constant-On-Time control scheme
provides fast transient response and eases loop
stabilization. Fault protections include cycle-by-
cycle current limiting and thermal shutdown.
The MP2184 is available in an ultra-small
SOT583 package and requires a minimal
number of readily available standard external
The MP2184 is ideal for a wide range of
applications including high performance DSPs,
wireless power, portable and mobile devices,
and other low-power systems.
Low IQ: 21μA
1.2MHz Switching Frequency
EN for Power Sequencing
1% FB Accuracy
Wide 2.5V-to-5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 4A Output Current
65mΩ and 35mΩ Internal Power MOSFET
100% Duty On
External Soft Start/Stop Control
Short-Circuit Protection with Hiccup Mode
Available in a SOT583 Package
Battery Powered Devices
Low Voltage I/O System Power
Multi Function Printer
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.
Efficiency vs. Output Current
75 Vin=5V, Vo=1.2V
OUTPUT CURRENT (A)
MP2184 Rev. 0.8
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
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