MP2171
5.5V, 1A, 2.6MHz,
Synchronous, Step Down Converter
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP2171 is a monolithic, step-down, switch-
mode converter with integrated, internal, power
MOSFETs. The MP2171 can achieve up to 1A
of continuous output current from a 2.5V to
5.5V input voltage with excellent load and line
regulation. The output voltage can be regulated
as low as 0.6V.
Wide 2.5V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Up to 1A Output Current
90mΩ and 50mΩ Internal Power MOSFET
Switches
Default 2.6MHz Switching Frequency with
3.3V Input and 1.8V Output
EN and Power Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection
(OCP)
Constant-on-time (COT) control provides fast
transient response and eases loop stabilization.
Full protection features include cycle-by-cycle
current limiting and thermal shutdown.
Auto-Discharge at Power-Off
Short-Circuit Protection (SCP) with Hiccup
Mode
Stable with Low ESR Output Ceramic
Capacitors
The MP2171 is ideal for a wide range of
applications, including automotive infotainment,
clusters, telematics, and portable instruments.
The MP2171 requires only a minimal number of
readily
available,
standard,
external
Available in a TSOT23-8 Package
components and is available in a small
TSOT23-8 package.
APPLICATIONS
Automotive Infotainment
Automotive Clusters
Automotive Telematics
Low-Voltage I/O System Power
Handheld/Battery-Powered 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.
TYPICAL APPLICATION
Efficiency
VIN = 3.3V
100
90
80
70
60
50
40
30
Vo=1.2V
Vo=1.8V
20
10
0
0.01
0.1
OUTPUT CURRENT (A)
1
MP2171 Rev. 1.0
4/24/2019
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
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