The MP2319 is a fully-integrated, high-
frequency, synchronous, rectified, step-down,
switch-mode converter with internal power
MOSFETs. The MP2319 offers a very compact
solution that achieves 3A of continuous output
current with excellent load and line regulation
over a wide input range. The MP2319 has
synchronous mode operation for higher
efficiency over the output current load range.
Constant-on-time control operation provides a
very fast transient response, easy loop design,
and very tight output regulation.
Full protection features include short-circuit
protection (SCP), over-current protection (OCP),
under-voltage protection (UVP), over-voltage
protection (OVP), and thermal shutdown.
The MP2319 requires a minimal number of
readily available, standard, external
components and is available in a space-saving,
8-pin, TSOT23 package.
3A, 18V, 650kHz, High-Efficiency,
Synchronous, Step-Down Converter
in 8-Pin TSOT23
Wide 4.5V to 18V Operating Input Range
3A Output Current
105mΩ/57mΩ Low RDS(ON) Internal Power
Output Adjustable from 0.8V
EN Shutdown Output Discharge
Internal Soft Start
High-Efficiency Synchronous Mode
Fixed 650kHz Switching Frequency
EN and Power Good for Power Sequencing
Over-Current Protection (OCP) and Hiccup
Auto-Retry Over-Voltage Protection (OVP)
Available in a TSOT23-8 Package
Portable Devices, xDSL Devices
Digital Set-Top Boxes
Flat-Panel Televisions and Monitors
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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.
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