MP28248 Datasheet: Synchronous Step-Down Converter





MP28248 Synchronous Step-Down Converter Datasheet

Part Number MP28248
Description Synchronous Step-Down Converter
Manufacture MPS
Total Page 19 Pages
PDF Download Download MP28248 Datasheet PDF

Features: 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-in tegrated, highefficiency, synchronous, step-down, switch mode converter. It of fers a very compact solution that can a chieve a 3A continuous output current o ver a wide input supply range with exce llent load and line regulation. The MP2 8248 operates at high efficiency over a wide output-current load range. Consta nt-On-Time control mode provides fast t ransient response and eases loop stabil ization. Full protective features inclu de short-circuit protection, over-curre nt protection, over-voltage protection, under-voltage protection, and thermal shutdown. The MP28248 requires a minima l number of readily-available standard external components. This device is ava ilable in a space-saving 2mmx3mm 12-pin QFN package. FEATURES  Wide 4.2V t o 20V Operating Input Range  3A Output Current  Low RDS(ON) Int.

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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 RDS(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
70
60
50
40
0.01
Vin=12V
0.1 1
10
MP28248 Rev 1.0
1/5/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
1

                    
                    






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