Rev. 07-2007

3/ 3

V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062

www.v-infinity.com

1-866-372-1258

VWQBS2-SIP Series DC-DC Converter

Application Notes:

- All of the VWQBS2-SIP Series have been tested

according to the following recommended testing

circuit before leaving the factory. This series should

be tested under load(Figure 1). If you want to further

decrease the input/output ripple, you can increase

capacitance properly or choose capacitors with

low ESR. However, the capacitance should not be too

high(Table 2).

- NC Terminals

Unless otherwise specified, NC terminals of all series

are used for converter's interior circuit

connection, and are not allowed connection of any

external circuit.;

- CTRL Terminal

When open or high impedance, the

converter will work well; When this pin is ‘high’; the

converter will shutdown; It should be noted that the

input current should remain between

5-10mA,exceeding the maximum 20mA will

cause permanent damage to the converter.

Operating Temp.(

)

C

Temperature Derating Graph

- Input current

Nominal input voltage range. The input

current of the power supply must be sufficient

to the startup current (Ip) of the DC/DC module

(Figure 2)

Input Voltage (V)

Input Voltage

Range

Ip

Figure 1

- Output Load

In order to ensure the product operates

efficiently and reliably, make sure the specified range

of input voltage is not exceeded.

No parallel connection or plug and play.

Vout

Cout (Max)

3.3

5

9

12

15

820μF

680μF

470μF

220μF

330μF

Table 2