EV2109DQ-00A Datasheet, PDF (1/4 Pages) Monolithic Power Systems – Dual 800mA, 6V, 1.2MHz Synchronous Step-Down Converter Evaluation Board

TM
The Future of Analog IC Technology ^TM
EV2109DQ-00A
Dual 800mA, 6V, 1.2MHz Synchronous
Step-Down Converter Evaluation Board
DESCRIPTION
The EV2109DQ-00A is the evaluation board for
the MP2109. The MP2109 contains two
independent 1.2MHz constant frequency,
current mode, PWM step-down converters.
Each converter integrates a main switch and a
synchronous rectifier for high efficiency without
an external Schottky diode. The MP2109 is
ideal for powering portable equipment that runs
from a single cell Lithium-Ion (Li+) battery. Each
converter can supply 800mA of load current
from a 2.5V to 6V input voltage. The output
voltage can be regulated as low as 0.6V. It can
also run at 100% duty cycle for low dropout
applications.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage 1
Output Voltage 2
Load Max
Symbol
V_IN1/IN2
V_OUT1
V_OUT2
I_OUT1/OUT2
Value
2.5 to 6
1.8
1.2
800
Units
V
V
V
mA
FEATURES
• Up to 95% Efficiency
• 800mA Load Current on Each Channel
• 2.5V to 6V Input Voltage Range
• Output Voltage as Low as 0.6V
APPLICATIONS
• Cellular and Smart Phones
• Microprocessors and DSP Core Supplies
• PDAs
• MP3 Players
• Digital Still and Video Cameras
• Portable Instruments
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV2109DQ-00A EVALUATION BOARD
Efficiency vs
Load Current
100
V_OUT=1.8V
90
80
V_OUT=1.2V
70
(L x W x H) 2.0” x 1.6” x 0.4”
(5.0cm x 4.0cm x 1.0cm)
Board Number Package MPS IC Number
EV2109DQ-00A
QFN10
(3mm x 3mm)
MP2109DQ
60
50
0.0
0.2 0.4 0.6 0.8
LOAD CURRENT (A)
EV2109_EC01
EV2109DQ-00A Rev. 1.1
www.MonolithicPower.com
1
10/14/2005
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