Rev A

DCMAR1 SERIES

1A

DC/DC Switching Regulator

Single Outputs

3/9/2017

Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •

Fax 603-778-9797

website: www.wallindustries.com • e-mail: sales@wallindustries.com

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MECHANICAL DRAWINGS

Pin Connections

Pin

Function

1

+Vin

2

GND

3

+Vout

Notes:

All dimensions in mm (inches)

Tolerance: X.X±0.5 (X.XX±0.02)

X.XX±0.25 (X.XXX±0.01)

Pins: ±0.05(±0.002)

TEST SETUP

Peak-to-Peak Noise Measurement Test

Use a Cout 0.47µF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-

20MHz. Position the load between 50mm and 75mm from the DC/DC Converter.

TECHNICAL NOTES

Output Ripple Reduction

A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To

reduce output ripple, it is recommended to use 3.3µF capacitors at the output.

Maximum Capacitive Load

The DCMAR1 series has limitation of maximum connected capacitance on the output. The power module may operate in current limiting

mode during start-up, affecting the ramp-up and startup time. Maximum capacitance can be found in the data sheet.