MP2270
1.8A, 24V, 700kHz
Step-Down Converter
The Future of Analog IC Technology
DESCRIPTION
The MP2270 is a monolithic step-down switch
mode converter with a built-in internal power
MOSFET. It achieves 1.8A continuous output
current over a wide input supply range with
excellent load and line regulation. Current mode
operation provides fast transient response and
eases loop stabilization. Fault condition
protection includes cycle-by-cycle current limiting
and thermal shutdown.
The MP2270 requires a minimum number of
readily available standard external components.
The MP2270 is available in a 10-pin exposed pad
MSOP package.
FEATURES
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1.8A Continuous Output Current
0.3Ω Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
0.1μA Shutdown Mode
Fixed 700kHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.5V to 24V Operating Input Range
Output Adjustable from 0.81V to 20V
Available in a 10-pin Exposed Pad MSOP
Package
Broadband Communications Equipment
Digital Entertainment Systems
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
APPLICATIONS
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“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V
IN
5
IN
BST
1
MP2270
OFF ON
6
EN
SW
3
CB
10nF
D1
B230A
V
OUT
3.3V
GND
8
FB
10
V
IN
I
OUT_MAX
=1.8
MP2270 Rev. 1.1
4/16/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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