EV2276-D-00A

–SYNCHRONOUS 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.

EV2276-D-00A Rev.1.0

www.MonolithicPower.com

8

9/25/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2017 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect the positive and negative terminals of the load to the VOUT and GND pins,

respectively.

2. Preset the power supply output voltage between 4V and 16V, and then turn off the power supply.

3. Connect the positive and negative terminals of the power supply output to the VIN and GND

pins, respectively. Make sure the power supply has current limit high enough to supply the

power.

4. Turn the power supply on. The EV2276-D-00A will automatically startup.

5. For low VIN and heavy load case, choose larger input cap to improve stability.

6. To use the Enable function, apply a digital input to the EN pin. Drive EN higher than 1.27V to

turn on the regulator or less than 0.93V to turn it off.

7. Use R1 and R2 to set the output voltage with VFB = 0.8 V. Follow the Application Information

section in the device datasheet to select the proper values of R1, R2, inductor and output

capacitor values when output voltage is changed.

8. The JP1 jumper can be used to select the operating frequency (600kHz, 1100kHz or 2000kHz)

and light load operation mode (Pulse Skip or CCM).