MP2108 Datasheet, PDF (1/10 Pages) Monolithic Power Systems – 2A, 6V, 720KHz Synchronous Buck Converter

TM
MP2108
2A, 6V, 720KHz
Synchronous Buck Converter
The Future of Analog IC Technology ^TM
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
DESCRIPTION
The MP2108 is a 2A, 720KHz synchronous
buck converter designed for low voltage
applications requiring high efficiency. It is
capable of providing output voltages as low as
0.9V, and integrates top and bottom switches to
minimize power loss and component count. The
720KHz switching frequency allows for small
filtering components, further reducing the
solution size.
The MP2108 includes cycle-by-cycle current
limiting and under voltage lockout. Internal
power switches, combined with the tiny 10-pin
MSOP or 3mm x 3mm QFN packages, provide
a solution requiring a minimum of board space.
EVALUATION BOARD REFERENCE
Board Number
EV2108DQ/DK-00A
Dimensions
2.5”X x 2.0”Y x 0.5”Z
FEATURES
• 2A Output Current
• Synchronous Rectification
• Internal 160mΩ and 190mΩ Power Switches
• Input Range of 2.6V to 6V
• Over 90% Efficiency
• Zero Current Shutdown Mode
• Under Voltage Lockout Protection
• Soft-Start Operation
• Thermal Shutdown
• Internal Current Limit (Source & Sink)
• Tiny 10-Pin MSOP and 3x3 QFN Packages
APPLICATIONS
• SOHO Routers, PCMCIA Cards, Mini PCI
• Handheld Computers, PDAs
• Cell phones, Digital Still and Video Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
INPUT
2.6V to 6V
10nF
OFF ON
10nF
2
1
VIN
10
RUN
BST
3
LX
6
SS
MP2108
8
COMP
7
FB
3.3nF
VREF SGND PGND
9
5
4
10nF
OUTPUT
1.8V / 2A
MP2108_TAC_S01
MP2108 Rev. 0.93
www.MonolithicPower.com
1
2/28/2006
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© 2006 MPS. All Rights Reserved.