TM
EV2101DQ-00A
1.6MHz, 800mA Synchronous
Step-Down Converter plus 200mA LDO
EVALUATION BOARD
The Future of Analog IC Technology
TM
DESCRIPTION
The EV2101DQ-00A is the evaluation board for
the MP2101 step-down converter. It is designed
for high efficiency, step-down applications.
The MP2101 is a 1.6MHz current mode
synchronous buck converter plus LDO, which
provides two regulated output rails. Both control
loops are internally compensated, and all power
devices are integrated. Channel 1 is a
synchronous buck providing up to 92% efficiency
and 800mA output current from a 2.5V to 6V
input voltage. Channel 2 is an LDO that can
supply up to 200mA of load current from either
the power input or the output of channel 1 to
minimize the overall power loss and output
noises.
The MP2101 is available in a space-saving
3mm x 3mm QFN10 package with an exposed
pad.
FEATURES
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0.8A and 0.2A Outputs
2.5V to 6V Operating Input Range
Independently Adjustable Outputs from 0.6V
to V
IN
Independently External Enable Control
PWROK Pin Monitors Output Regulation
鹵3% Output Voltage Reference Over
Temperature
Small Solution Size
DVD+/-RW drive
Smart phones
PDAs
Digital Cameras
Portable Instruments
APPLICATIONS
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of Monolithic
Power Systems, Inc.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage Range
Output Voltage
Load Max
Symbol
V
IN
V
OUT1
V
OUT2
I
OUT1
I
OUT2
Value
2.5 鈥?6.0
1.8
1.2
800
200
Units
V
V
V
mA
mA
EV2101DQ-00A EVALUATION BOARD
100
95
90 V
IN
=3.3V
85
80
V
IN
=4.2V
75
70
65
V
IN
=5.0V
60
55
50
45
40
35
10
100
LOAD CURRENT (mA)
Efficiency vs
Load Current
(L x W x H) 2.3鈥?x 2.0鈥?x 0.4鈥?/div>
(5.8cm x 5.1cm x 1.0cm)
Board Number
EV2101DQ-00A
EV2101DQ-00A Rev. 1.1
8/18/2006
MPS IC Number
MP2101DQ
EFFICIENCY (%)
1000
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2006 MPS. All Rights Reserved.
1
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