0.6A, Synchronous, Step-Down Converter
with 11µA IQ in Ultra-Small 1x1.5mm QFN
The MP21600 is a monolithic, step-down,
switch-mode converter with built-in, internal
power MOSFETs. The MP21600 achieves 0.6A
of continuous output current from a 2.3V to
5.5V input voltage range with excellent load and
line regulation. The output voltage can be
regulated as low as 0.6V.
The constant-on-time (COT) control scheme
provides fast transient response and eases loop
stabilization. Fault protections include cycle-by-
cycle current limiting and thermal shutdown.
The MP21600 is ideal for a wide range of
applications, including high-performance DSPs,
wireless power, portable and mobile devices,
and other low-power systems.
The MP21600 requires a minimal number of
readily available, standard, external
components is available in an ultra-small QFN-
6 (1.0mmx1.5mm) package.
Low IQ: 11μA
2.4MHz Switching Frequency
Enable (EN) Pin for Power Sequencing
Wide 2.3V to 5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 0.6A Output Current
120mΩ and 80mΩ Internal Power MOSFET
100% Duty Cycle
Short-Circuit Protection (SCP) with Hiccup
Stable with Low ESR Output Ceramic
Available in a QFN-6 (1.0mmx1.5mm)
Portable and Mobile Devices
Low-Voltage I/O System Power
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.
MP21600 Rev. 1.0
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.