18V, Dual-Channel 3A/2A, 540kHz,
Synchronous, Step-Down Converter
in 8-Pin TSOT23 Package
The MP2223 is a dual-channel, synchronous,
rectified, step-down, switch-mode converter
with built-in, internal power MOSFETs. The
MP2223 offers a very compact solution that
achieves 3A/2A of continuous output current
over a wide input supply range.
Two channels operate 180° out-of-phase to
minimize the input capacitor and alleviate EMI.
Current-mode operation provides fast transient
response and eases loop stabilization. Full
protection features include hiccup mode over-
current protection (OCP) and thermal shutdown.
Other features include power-save mode (PSM)
at light load and a separate enable control (EN)
for power-sequence control.
The MP2223 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
70mΩ/50mΩ for Ch1, 100mΩ/60mΩ for
Ch2, Low RDS(ON) Internal Power MOSFETs
Up to 3A (Ch1) and 2A (Ch2) Maximum
Continuous Output Current
Power-Save Mode for Light Load
540kHz Fixed Switching Frequency
Over-Current Protection (OCP) and Hiccup
Over-Voltage Protection (OVP )
Both Channel Outputs Adjustable from 0.8V
Available in a TSOT23-8 Package
Notebook Systems and I/O Power
Digital Set-Top Boxes
Flat-Panel Televisions and Monitors
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 Systems, Inc.
MP2223 Rev 1.0
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