MP2141N Datasheet: Step-down Converter





MP2141N Step-down Converter Datasheet

Part Number MP2141N
Description Step-down Converter
Manufacture MPS
Total Page 19 Pages
PDF Download Download MP2141N Datasheet PDF

Features: MP2141N 1A, Synchronous, Step-Down Conve rter with 11µA Quiescent Current in SO T563 DESCRIPTION The MP2141N is a mono lithic, step-down, switch-mode converte r with built-in, internal power MOSFETs . It can achieve 1A of continuous outpu t current from a 2.3V-to-5.5V input vol tage range with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. The constant- on-time control scheme provides a fast transient response and eases loop stabi lization. Fault protections include cyc le-bycycle current limiting and thermal shutdown. The MP2141N is available in an ultra-small SOT563 package and requi res a minimal number of readily availab le, standard, external components. The MP2141N is ideal for a wide range of ap plications, including high-performance DSPs, wireless power, portable and mobi le devices, and other low-power systems . FEATURES  Low Quiescent Current: 11μA  2.2MHz Switching Frequency EN for Power Sequencing  Wide 2.3V-to-5.5V Operating Input Range  O.

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MP2141N
1A, Synchronous, Step-Down Converter
with 11µA Quiescent Current
in SOT563
DESCRIPTION
The MP2141N 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 0.6V.
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 MP2141N is available in an ultra-small
SOT563 package and requires a minimal
number of readily available, standard, external
components.
The MP2141N is ideal for a wide range of
applications, including high-performance DSPs,
wireless power, portable and mobile devices,
and other low-power systems.
FEATURES
Low Quiescent Current: 11μA
2.2MHz Switching Frequency
EN for Power Sequencing
Wide 2.3V-to-5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 1A Output Current
120mΩ and 80mΩ Internal Power MOSFET
Switches
Output Discharge
Short-Circuit Protection (SCP) with Hiccup
Mode
Stable with Low ESR Output Ceramic
Capacitors
100% Duty Cycle
Power Good Only for Fixed Output Version
Available in a SOT563 Package
APPLICATIONS
Wireless/Networking Cards
Portable and Mobile Devices
Battery-Powered 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.
TYPICAL APPLICATION
VIN
5V
VIN SW
C1
10μF
OUT
MP2141N
EN EN FB
GND
L1
1μH
R1
200k
R2
200k
VOUT
1.2V/1A
C2
10μF
MP2141N Rev. 1.12
www.MonolithicPower.com
7/28/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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