Rev A

RBA1 SERIES

1 Watt

Single Output

DC/DC DIP & SIP Mount Converter

11/14/2017

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

Page 6 of 7

DESIGN REFERENCE

1. Typical Application Circuit

If it is required to further reduce input and output ripple, a filter capacitor may be connected to the input and output terminals. Moreover,

choosing a suitable filter capacitor is very important, start-up problems may arise if capacitance is too large. Under the condition of safe

and reliable operation, recommended capacitive load values are shown in table below.

Fig 1

Recommended Capacitive Load Value Table

Vin (VDC)

Cin (µF)

Vo (VDC)

Cout (µF)

3.3/5

4.7

3.3/5

10

12

2.2

9

4.7

15

2.2

12

2.2

24

1

15

1

-

-

24

0.47

2. EMC Solution-Recommended Circuit

Fig 2

Input Voltage (VDC)

3.3/5/12/15/24

EMI

C1

4.7µF/50V

C2

Refer to the Cout Fig 1

LDM

6.8µH

3.Output Load Requirements

In order to ensure the converter works reliably with high efficiency, the minimum load should not be less than 10% rated load when it is

used. If the needed power is small, please parallel a resistor on the output side (the sum of the efficient power and resistor consumption

power is not less than 10%)

MODEL NUMBER SETUP

RBA

1

-

05

05

S

Series Name

Output Power

Input Voltage

Ouptut Voltage

Package Type

03: 3.3VDC

03: 3.3VDC

S: SIP Package

05: 5VDC

05: 5VDC

D: DIP Package

12: 12VDC

09: 9VDC

15: 15VDC

12: 12VDC

24: 24VDC

15: 15VDC

24: 24VDC