MP38900 Datasheet, PDF (1/23 Pages) Monolithic Power Systems – High Efficiency, Fast Transient, 10A, 16V Synchronous Step-down Converter In a Tiny QFN20 Package

The Future of Analog IC Technology
MP38900/MP38900-B
High Efficiency, Fast Transient, 10A, 16V
Synchronous Step-down Converter
In a Tiny QFN20 (3x4mm) Package
DESCRIPTION
The MP38900/MP38900-B is a fully integrated,
high frequency synchronous rectified step-down
switch mode converter. It offers a very compact
solution to achieve 10A continuous output current
over a wide input supply range with excellent
load and line regulation. The MP38900/
MP38900-B operates at high efficiency over a
wide output current load range.
The table below summarizes the variations
among the MP38900 and the MP38900-B.
MP38900
MP38900-B
External
V_CC
Built-in V_CC
OCP
Latch Off
OCP
Hiccup
Soft SHDN
Hi-Z SHDN
To futher optimize efficiency at light load, the V_CC
supply of MP38900 is designed to be biased
externally.
Constant-On-Time (COT) control mode provides
fast transient response and eases loop
stabilization.
Full protection features include SCP, OCP, OVP,
UVP and thermal shutdown.
The MP38900/MP38900-B requires a minimum
number of readily available standard external
components and is available in a space-saving
QFN20 (3x4mm) package.
FEATURES
 Wide 4.5V to 16V Operating Input Range
 10A Output Current
 Internal 27mΩ High-Side, 10mΩ Low-Side
Power MOSFETs
 Proprietary Switching Loss Reduction
Technique
 1% Reference Voltage
 Programmable Soft Start Time
 Soft Shutdown (MP38900,)
 High-Z Shutdown (MP38900-B)
 Programmable Switching Frequency
 SCP, OCP, OVP, UVP Protection and
Thermal Shutdown
 Output Adjustable from 0.8V to 13V
 Available in a QFN20 (3x4mm) Package
APPLICATIONS
 Notebook Systems and I/O Power
 Networking Systems
 Optical Communication Systems
 Distributed Power POL Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithic
Power Systems, Inc.
MP38900/MP38900-B Rev. 1.1
www.MonolithicPower.com
1
6/25/2012
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