 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| EV2355DN-00A 4.75V to 23V In, 3A Out Step-Down DC/DC Converter Monolithic Power Systems EVALUATION BOARD -- INITIAL RELEASE 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. FEATURES * * * * * * * * * * Up to 3A Continuous Output Current Wide 4.75V to 23V Operating Input Range Monolithic Buck with 100m Internal FET Fixed 380KHz Frequency All Ceramic Input and Output Capacitors Programmable Soft-Start Programmable Input Under-Voltage Lockout Distributed Power Systems Battery Chargers Pre-Regulator for Linear Regulators APPLICATIONS "MPS" and "Monolithic Power Systems", are Registered Trademarks of Monolithic Power Systems, Inc. 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 EVALUATION BOARD Efficiency vs Load Current 95 90 VOUT=5.0V EFFICIENCY (%) 85 80 75 70 65 60 0 500 1000 1500 2000 2500 3000 3500 VOUT=2.5V VOUT=3.3V Dimensions (2.6"X x 1.9"Y x 0.4"Z) Board Number EV2355DN-00A MPS IC Number MP2355 LOAD CURRENT (mA) MP2355_EC01 01/05, Rev. 1.0 MPS Proprietary Information. (c) 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 EVALUATION BOARD SCHEMATIC VIN C6 OPEN EN R1 OPEN SYNC C3 10nF COMP R3 OPEN C11 OPEN VIN RUN BST LX C4 10nF D1 B340A SS C1 OPEN VOUT C9 OPEN MP2355 FB C10 OPEN GND C2 OPEN C5 4.7nF EV2355_S01 EV2355DN-00A BILL OF MATERIALS Qty 2 1 1 6 1 1 1 1 1 1 2 1 Ref C3, C4 C7 C5 C1, C2, C6, C9, C10, C11 C8 D1 L1 R4 R2 R5 R1, R3 U1 15H 16.9k 4.7k 10k 22F Value 10nF 10F 4.7nF Description Ceramic Cap, 50V, X7R Ceramic Cap, 25V, X5R Ceramic Cap, 50V, X7R Do Not Stuff Ceramic Cap, 16V, X5R Schottky Diode, 40V, 3A Inductor, 3.6A Film Res, 1% Film Res, 5% Film Res, 1% Do Not Stuff DC-DC Converter SO8 MPS MP2355DN SM1210 SMA SMD SM0805 SM0805 SM0805 AVX Diodes Inc Sumida Panasonic Panasonic Panasonic 1210YD226KAT2A B340A-13 CDRH104R ERJ-6ENF1692V ERJ-6GEYJ472V ERJ-6ENF1002V Package Manufacturer SM0805 SM1210 SM0805 AVX AVX AVX Manufacturer P/N 08055C103KAT2A 12103D106KAT2A 08055C472KAT2A 01/05, Rev. 1.0 MPS Proprietary Information. (c) 2005 All Rights Reserved. Unauthorized Photocopy and Duplication Prohibited. 2 EV2355DN-00A - 4.75V TO 23V IN, 3A OUT STEP-DOWN CONVERTER EVALUATION BOARD -- INITIAL RELEASE PRINTED CIRCUIT BOARD LAYOUT Figure 1--Top Silk Layer Figure 2--Top Layer Figure 3-- Bottom Mask Layer Figure 4-- Bottom Layer 01/05, Rev. 1.0 MPS Proprietary Information. (c) 2005 All Rights Reserved. Unauthorized Photocopy and Duplication Prohibited. 3 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. R4 The EN threshold is 2.5V, so VIN UVLO threshold is 1 + x 2 .5 V R5 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 Fax: 408-357-6601 www.MonolithicPower.com MPS Proprietary Information. (c) 2005 All Rights Reserved. Unauthorized Photocopy and Duplication Prohibited. 4 |
Price & Availability of MP2355
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |