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EV2364DF-00A Datasheet(PDF) 4 Page - Monolithic Power Systems |
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EV2364DF-00A Datasheet(HTML) 4 Page - Monolithic Power Systems |
4 / 4 page EV2364DF-00A – 1.5A, 23V, 1.4MHz DUAL STEP-DOWN CONVERTER EV BOARD 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. EV2364DF-00A Rev. 1.2 www.MonolithicPower.com 4 10/6/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM QUICK START GUIDE The output voltages of this board are set to 3.3V (VOUTA) and 2.5V (VOUTB). The board layout accommodates most commonly used inductors and output capacitors. 1. Attach the positive and negative ends of the first load to the VOUTA and GND pins, respectively. If using both outputs, attach the positive and negative ends of the second load to the VOUTB and GND pins, respectively. 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 MP2364 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 and less than 0.7V to turn it off. 6. The Output Voltages VOUTA and VOUTB can be changed by varying R1 and R4, respectively. Calculate the new values by the following formulae: ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − × = 1 92 . 0 V 6 R 1 R OUTA ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − × = 1 92 . 0 V 3 R 4 R OUTB Where R6 = 10kΩ and R3 = 10kΩ Example: For VOUTA = 3.3V: Ω = − × Ω = k 9 . 25 ) 1 92 . 0 3 . 3 ( 10k 1 R Therefore, use a 25.5kΩ standard 1% value resistor. |
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