The copyright and authority for the interpretation of the products are reserved by MORNSUN

URB1D_LD-15W & URB1D_LD-20W

2013.11.14-A/1

Page 8 of8

Note:

1. Min. load shouldn't be less than 5%, otherwise ripple maybe increased dramatically, If the product operates under min. load, it may not be

guaranteed to meet all specifications listed. Operation under minimum load will not damage the converter.

2. Max. Capacitive Load is tested at input voltage range and full load.

3. All specifications measured at Ta=25

°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.

4. In this datasheet, all test methods are based on our corporate standards.

5. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more details.

6. Please contact our technical support for any specific requirement.

7. Specifications of this product are subject to changes without prior notice.

MORNSUN Science & Technology Co.,Ltd.

Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China.

Tel: 86-20-38601850

Fax:86-20-38601272

E-mail: info@mornsun.cn

Http://www.mornsun-power.com

DESIGN CONSIDERATIONS

1) Recommended circuit

All the URB1D_LD-15W &URB1D_LD-20W Series have been tested according to the following recommended testing circuit before leaving factory

(see Figure 4).

If you want to further decrease the input/output ripple, you can increasea capacitance properly or choose capacitors with low ESR, but the

greatest capacitance of its filter capacitor must less than the Max. Capacitive Load. The recommended capacitance of its filter capacitor sees

(Table 2).

DC

DC

Vin

GND

+Vo

0V

Cin

Cout

(Figure 4)

EXTERNAL CAPACITOR TABLE (Table 2)

2) It is not recommended to increase the output power capability by connecting two or more converters in parallel.The product is not hot-

swappable

Capacitance

Output

Voltage

Cout(

µF)

Cin(

µF)

3.3V/5V

470

100

12/15V

220

24V

100