The Future of Analog IC Technology
1A, Synchronous, Step-Down Converter
with 11µA Quiescent Current
The MP1601 is a monolithic, step-down, switch-
mode converter with built-in, internal power
MOSFETs. It can achieve 1A 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
The constant-on-time control scheme provides
a fast transient response and eases loop
stabilization. Fault protections include cycle-by-
cycle current limiting and thermal shutdown.
The MP1601 is available in an ultra-small
SOT563 package and requires a minimal
number of readily available, standard, external
The MP1601 is ideal for a wide range of
applications including high-performance DSPs,
wireless power, portable and mobile devices,
and other low-power systems.
Low Quiescent Current: 11μA
2.2MHz Switching Frequency
EN for Power Sequencing
Power Good Only for Fixed Output Version
Wide 2.3V-to-5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 1A of Output Current
160mΩ and 120mΩ Internal Power
Short-Circuit Protection (SCP) with Hiccup
Stable with Low ESR Output Ceramic
100% Duty Cycle
Available in a SOT563 Package
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.
EN EN FB
MP1601 Rev. 1.0
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.