EV28164-D-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB

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.

EV28164-D-00A Rev.1.0

www.MonolithicPower.com

9

10/27/2015

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

© 2015 MPS. All Rights Reserved.

QUICK START GUIDE

1. Preset the load to some value, e.g. 0.5A, notice that the MP28164 may enter SCP hiccup if starting

up with a heavier load due to the startup current limit which is for inrush protection..

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

3. Preset the power supply’s output voltage (1.8~5.5V), and then turn off the power supply.

4. Connect the positive and negative terminals of the power supply output to the VIN and GND pins,

respectively.

5. Turn on the power supply. The MP28164 demo board will automatically start up.

6. To use the Enable function, apply a digital input to the EN pin. Drive EN higher than 1.2V to turn on

the regulator or less than 0.4V to turn it off.

7. To use MODE pin for forced CCM operation, please turn off Vin then connect the jumper JP1 to

VIN.

8. If other output voltage is preferred, The output voltage VOUT can be programmed by changing R1

and R2 according to below equation:

FB

OUT

FB

V

R2 R1

VV

=×

−

Where

FB

V

recommended to be from 300 kΩ through 620 kΩ for better efficiency at light load. The

recommended output voltage can be from 1.5V through 5V.