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부품번호 | EV2355DN-00A 기능 |
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기능 | 3A Out Step-Down DC/DC Converter | ||
제조업체 | MPS | ||
로고 | |||
www.DataSheet4U.com
Monolithic Power Systems
GENERAL DESCRIPTION
The EV2355DN-00A is the Evaluation Board for
MPS’ MP2355 Step-Down DC/DC Converter. It
features a wide supply range of 4.75V to 23V
and a continuous output current up to 3A. The
output voltage is set to 3.3V, but can be easily
adjusted to other levels from 1.22V. A 380KHz
high switching frequency allows the use of
small, low cost capacitors and inductors.
Current mode control and an integrated power
MOSFET minimize component count, board area,
and solution cost. Fault condition protection
includes cycle-by-cycle current limiting, thermal
shutdown, and under-voltage lockout. Internal
soft-start reduces the turn-on stress. The small
8-pin SOIC package with exposed pad minimizes
board area and provides excellent thermal
management.
ELECTRICAL SPECIFICATION
Parameter
Supply Voltage
Output Voltage
Output Current
Symbol
VIN
VOUT
IOUT
Value
4.75 to 23
3.3
0 to 3
Units
V
V
A
EV2355DN-00A
4.75V to 23V In, 3A Out
Step-Down DC/DC Converter
EVALUATION BOARD — INITIAL RELEASE
FEATURES
• Up to 3A Continuous Output Current
• Wide 4.75V to 23V Operating Input Range
• Monolithic Buck with 100mΩ Internal FET
• Fixed 380KHz Frequency
• All Ceramic Input and Output Capacitors
• Programmable Soft-Start
• Programmable Input Under-Voltage Lockout
APPLICATIONS
• Distributed Power Systems
• Battery Chargers
• Pre-Regulator for Linear Regulators
“MPS” and “Monolithic Power Systems”, are Registered Trademarks of
Monolithic Power Systems, Inc.
EV2355DN-00A EVALUATION BOARD
Dimensions (2.6”X x 1.9”Y x 0.4”Z)
Board Number
EV2355DN-00A
MPS IC Number
MP2355
Efficiency vs
Load Current
95
VOUT=5.0V
90
85
80 VOUT=2.5V
75
VOUT=3.3V
70
65
60
0
500 1000 1500 2000 2500 3000 3500
LOAD CURRENT (mA)
MP2355_EC01
01/05, Rev. 1.0
MPS Proprietary Information. © 2005 All Rights Reserved.
Unauthorized Photocopy and Duplication Prohibited.
1
EV2355DN-00A – 4.75V TO 23V IN, 3A OUT STEP-DOWN CONVERTER
EVALUATION BOARD — INITIAL RELEASE
QUICK START GUIDE
1. Connect the positive terminal of the load to VOUT pins, and the negative terminal of the load to
GND pins
2. Preset the power supply output to 4.75V to 23V and turn off the power supply.
3. Connect the positive terminal of the power supply output to the VIN pin and the negative
terminal of the power supply output to the GND pin
4. Turn the power supply on. The MP2355 will automatically startup.
5. To use the Enable function, apply a digital input to EN pin. Drive EN higher than 2.5V to turn on
the regulator, drive EN less than 0.7V to turn it off.
6. An input under voltage lockout (UVLO) function can be implemented by the addition of a resistor
divider R4 and R5.
The
EN
threshold
is
2.5V,
so
VIN
UVLO
threshold
is
⎜⎛1 +
⎝
R4
R5
⎟⎞
⎠
×
2.5V
The output voltage of this board is preset to 3.3V. This board is laid out to accommodate most
commonly used inductors and output capacitors and to be programmed for most standard output
voltages. For other output voltages, please refer to the Application Information section in the MP2355
datasheet.
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV2355DN-00A Rev. 1.0
Monolithic Power Systems, Inc.
1/4/2005
983 University Avenue, Building A, Los Gatos, CA 95032 USA
Tel: 408-357-6600 ♦ Fax: 408-357-6601 ♦ www.MonolithicPower.com
MPS Proprietary Information. © 2005 All Rights Reserved. Unauthorized Photocopy and Duplication Prohibited.
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부품번호 | 상세설명 및 기능 | 제조사 |
EV2355DN-00A | 3A Out Step-Down DC/DC Converter | MPS |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |