MP3115DT-LF-P Datasheet, PDF (1/8 Pages) MPS Industries, Inc. – High-Efficiency, Single-Cell Alkaline, 1.3MHz Synchronous Step-up Converter with Output Disconnect

The Future of Analog IC Technology
MP3115
High-Efficiency, Single-Cell Alkaline, 1.3MHz
Synchronous Step-up Converter
with Output Disconnect
DESCRIPTION
The MP3115 is a synchronous, fixed frequency,
current mode step-up converter with output-to-
input disconnect optimized to boost a single AA
Alkaline battery to 2.5V or 3.3V.
It can startup from an input voltage as low as
0.950V and provide in-rush current limiting as
well as output short circuit protection. The
integrated P-Channel synchronous rectified
switch provides improved efficiency and
eliminates an external schottky diode. The
output disconnect feature allows the output to be
completely discharged, thus allowing the part to
draw less than 1µA of current in shutdown mode.
The 1.3MHz switching frequency allows for the
use of smaller external components and the
internal compensation and soft-start minimize
the external component count, all helping to
produce a compact solution for a wide range of
load current.
The MP3115 regulates the output voltage up to
4.0V or 3.3V at 200mA from a single cell AA
battery, without the use of an external Schottky
diode.
The MP3115 is offered in a SOT23-6 package.
EVALUATION BOARD REFERENCE
Board Number
Dimensions
EV3115DT-00A L x W x H (5cm x 5cm x 1.2cm)
FEATURES
• Over 90% Efficiency
• Output-to-Input Disconnect in Shutdown
Mode
• Internal Synchronous Rectifier
• Output Voltage up to 4.0V without an
External Schottky Diode
• Inrush Current Limiting and Internal
Soft-Start
• Internal Compensation
• 1A Minimum Peak Current Limit
• 1.3MHz Fixed Switching Frequency
• Zero Current Shutdown Mode
• Thermal Shutdown
• 6-Pin SOT-23 Package
APPLICATIONS
• Single-cell Alkaline Consumer Products
• MP3 Players
• Wireless Mouse
• RFTags
• Audio Recorders
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
0.95V to 2.5V
VIN
EN
1
SW
OUT ⁵
6
IN
MP3115
4 _EN
GND
2
FB ³
3.3V
VOUT
MP3115 Rev. 0.9
www.MonolithicPower.com
1
4/12/2016
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