MP2106
1.5A, 15V, 800KHz
Synchronous Buck Converter
MP2106 Rev. 1.6 www.MonolithicPower.com 1
2/22/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
DESCRIPTION
The MP2106 is a 1.5A, 800KHz 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
800KHz switching frequency reduces the size
of filtering components, further reducing the
solution size.
The MP2106 includes cycle-by-cycle current
limiting and under voltage lockout. The internal
power switches, combined with the tiny 10-pin
MSOP and QFN packages, provide a solution
requiring a minimum of surface area.
EVALUATION BOARD REFERENCE
Board Number Dimensions
EV2106DQ/DK-00A 2.5”X x 2.0”Y x 0.5”Z
FEATURES
• 1.5A Output Current
• Synchronous Rectification
• Internal 210m and 255m Power Switches
• Input Range of 2.6V to 15V
• >90% Efficiency
• Zero Current Shutdown Mode
• Under Voltage Lockout Protection
• Soft-Start Operation
• Thermal Shutdown
• Internal Current Limit (Source & Sink)
• Tiny 10-Pin MSOP or QFN Package
APPLICATIONS
• DC/DC Regulation from Wall Adapters
• Portable Entertainment Systems
• Set Top Boxes
• Digital Video Cameras, DECT
• Networking Equipment
• Wireless Modems
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP2106
LX
VIN BST
FB
67
8
2
9104
3
1
5
COMP
SS
PGNDSGNDVREF
RUN
OUTPUT
1.8V / 1.5A
INPUT
2.6V to 15V
MP2106_TAC_S01
OFF ON
10nF
10nF
C7
C1
C2
C5 C3
C6
3.3nF
10nF
R4
R3
R2
L1
R1
100
90
80
70
60
50
40
30
20
10
0
EFFICIENCY (%)
0.01 0.1 1 10
LOAD CURRENT (A)
MP2106_TAC_EC02
Efficiency vs.
Load Current
V
IN
=5V
V
IN
=3.3V
