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MP2105DJ 参数 Datasheet PDF下载

MP2105DJ图片预览
型号: MP2105DJ
PDF下载: 下载PDF文件 查看货源
内容描述: 800毫安同步降压降压转换器 [800mA Synchronous Buck Step-Down Converter]
分类和应用: 转换器
文件页数/大小: 4 页 / 158 K
品牌: MPS [ MONOLITHIC POWER SYSTEMS ]
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EV2105DJ-00A
800mA Synchronous Buck
Step-Down Converter
Monolithic Power Systems
INITIAL RELEASE
GENERAL DESCRIPTION
The EV2105 evaluation board is designed for
low dropout step down converter applications. It
implements the MP2105 1MHz Fixed
Frequency, Current Mode, PWM step-down
converter. The device integrates a main switch
and a synchronous rectifier for high efficiency
without an external Schottky diode. It is ideal for
powering portable equipments that runs from a
single cell Lithium-Ion (Li+) Battery. It 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. In 100% Duty Cycle
Dropout operation, it works with minimum input
voltage as low as output voltage.
FEATURES
High Efficiency: Up to 95%
800mA Available Load Current
2.5V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Short Circuit Protection
Thermal Fault Protection
<0.1µA Shutdown Current
Programmable Enable Control
Cellular and Smart Phones
Microprocessors/DSP Core Supplies
PDAs
MP3 Players
Digital Still and Video Cameras
Portable Instruments
APPLICATIONS
ELECTRICAL SPECIFICATION
Parameter
Input Voltage Range
Output Voltage
Load Max
Symbol
V
IN
V
OUT
I
OUT
Value
2.5 to 6.0
1.8
800
Units
V
V
mA
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
EV2105DJ-00A EVALUATION BOARD
Efficiency vs
Load Current
100
90
80
V
IN
= 3.3V
V
IN
= 4.2V
EFFICIENCY (%)
70
60
50
40
30
20
10
Dimensions (2.0”X x 2.0”Y x 0.5”Z)
Board Number
EV2105DJ-00A
MPS IC Number
MP2105DJ
0
10
100
LOAD CURRENT (mA)
1000
MP2105-EC01
12/04, Rev. 1.0
www.MonolithicPower.com
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