MP28248 Datasheet, PDF (1/19 Pages) Monolithic Power Systems – High-Efficiency, Fast-Transient, 3A, 4.2V-20V Input Synchronous Step-down Converter in a QFN12 (2x3mm) Package

MP28248
High-Efficiency, Fast-Transient, 3A, 4.2V-20V Input
Synchronous Step-down Converter
The Future of Analog IC Technology
in a QFN12 (2x3mm) Package
DESCRIPTION
The MP28248 is a fully-integrated, high-
efficiency, synchronous, step-down, switch
mode converter. It offers a very compact
solution that can achieve a 3A continuous
output current over a wide input supply range
with excellent load and line regulation. The
MP28248 operates at high efficiency over a
wide output-current load range.
Constant-On-Time control mode provides fast
transient response and eases loop stabilization.
Full protective features include short-circuit
protection, over-current protection, over-voltage
protection, under-voltage protection, and
thermal shutdown.
The MP28248 requires a minimal number of
readily-available standard external components.
This device is available in a space-saving
2mmx3mm 12-pin QFN package.
FEATURES
 Wide 4.2V to 20V Operating Input Range
 3A Output Current
 Low R_DS(ON) Internal Power MOSFETs
 Proprietary Switching-Loss Reduction
Technique
 Soft Startup/Shutdown
 Programmable Switching Frequency
 SCP, OCP, UVP, OVP, and Thermal
Shutdown
 Output Adjustable from 0.815V to 13V
 Available in a QFN12 (2mmx3mm) Package
APPLICATIONS
 Networking Systems
 Distributed Power Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS
green status, please visit MPS website under the Products, Quality
Assurance page.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
100
90
80
Vin=12V
70
60
50
40
0.01
0.1
1
10
MP28248 Rev 1.0
www.MonolithicPower.com
1
1/5/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.