MP2355 Datasheet

  • MP2355

  • Monolithic Power Systems [3A, 23V, 380KHz Step-Down Convert...

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  • MPS

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EV2355DN-00A 鈥?4.75V TO 23V IN, 3A OUT STEP-DOWN CONVERTER
EVALUATION BOARD 鈥?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.
鈳?/div>
R4
鈳?/div>
The EN threshold is 2.5V, so V
IN
UVLO threshold is
鈳?/div>
1
+
鈳?脳
2 .5 V
鈳?/div>
R5
鈳?/div>
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
1/4/2005
Monolithic Power Systems, Inc.
983 University Avenue, Building A, Los Gatos, CA 95032 USA
Tel: 408-357-6600
鈾?/div>
Fax: 408-357-6601
鈾?/div>
www.MonolithicPower.com
MPS Proprietary Information. 漏 2005 All Rights Reserved. Unauthorized Photocopy and Duplication Prohibited.
4

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