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EV1593DN-00A Datasheet(PDF) 5 Page - Monolithic Power Systems |
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EV1593DN-00A Datasheet(HTML) 5 Page - Monolithic Power Systems |
5 / 5 page EV1593DN-00A – 4.75V-28V INPUT, UP TO 3A OUTPUT STEP-DOWN CONVERTER EVALUATION BOARD - INITIAL RELEASE NOTICE: MPS believes the information in this document to be accurate and reliable. However, it is subject to change without notice. Contact MPS for current specifications. MPS encourages users of its products to ensure that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS cannot assume any legal responsibility for any said applications. EV1593DN-00A (MP1593) Rev. 1.0 Monolithic Power Systems, Inc. 5 8/4/04 983 University Avenue, Building A, Los Gatos, CA 95032 USA © 2004 MPS, Inc. Tel: 408-357-6600 ♦ Fax: 408-357-6601 ♦ www.MonolithicPower.com 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 – 28V 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 MP1593 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 V 5 . 2 5 R 4 R 1 × ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + . RECOMMENDED COMPONENTS FOR STANDARD OUTPUT VOLTAGES The output voltage of this board is set 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. The following table lists recommended components for some standard output voltages. Listed compensation components (R2, C3) values are based on the output capacitor installed on this board. For other capacitors, refer to the Application Information section in the MP1593 datasheet. Table 1—Recommended Components for Standard Output Voltages VOUT R1 R2 C3 L1 1.8V 4.75kΩ 3kΩ 4.7nF 4.7µH 2.5V 10.5kΩ 3.9kΩ 5.6nF 4.7-6.8µH 3.3V 16.9kΩ 5.6kΩ 8.2nF 6.8-10µH 5V 30.9kΩ 7.5kΩ 10nF 10-15µH 12V 88.7kΩ 10kΩ 3.3nF 15-22µH |
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