32.00 x 20.00 x 10.80 (1.260 x 0.787 x 0.425 inch)
aluminum alloy
14
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
PIN CONNECTIONS
PIN
1
2,3
11
14
16
22,23
FUNCTION
CTRL
GND
NC
+Vo
0V
Vin
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
VAWQ12
│
DESCRIPTION:
DC-DC CONVERTER
date
09/19/2013
│
page
4 of 5
EFFICIENCY CURVES
1. efficiency vs. load
VAWQ12-Q24-S3R3
90
80
70
60
50
40
30
20
10
0
0
1,000
2,000
Load (mA)
3,000
4,000
90
85
Efficiency (%)
80
75
70
65
60
55
50
9
12
15
18
21
24
27
30
33
36
2. efficiency vs. input voltage
VAWQ12-Q24-S3R3
Efficiency (%)
Input Voltage (V)
APPLICATION NOTES
1.
Recommended Circuit
All of the VAWQ12 models have been tested according to the following recommended testing circuit before leaving factory. If you want
to further decrease the input ripple, Cin is recommended to use 100
μF.
If ripple and noise are required, you can increase capacitance
of Cout properly. However, the capacitance should not be higher than Max capacitance. (see Figure 1).
Figure 1
Vin
C in
Vout
DC
DC
0V
GND
2.
Recommended Capacitance
Vout
(Vdc)
3.3/5
12/15
Cin
(μF)
100
100
Cout
(μF)
220
100
Table 1
Note:
1. All specifications measured at Ta: 25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified
2. When product begins to work, the temperature may rise slowly until the unit is stabilized. It is normal that the output voltage, derating, and efficiency may reduce during
this time.
3. Min. load shouldn't be less than 10%, otherwise ripple maybe increased dramatically. If the product operates under min. load may not meet all specifications listed.
Operation under minimum load will not damage the converter.
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
VAWQ12
│
DESCRIPTION:
DC-DC CONVERTER
date
09/19/2013
│
page
5 of 5
REVISION HISTORY
rev.
1.0
1.01
1.02
1.03
1.04
description
initial release
new template applied
V-Infinity branding removed
case material changed to aluminum alloy, dimensions changed, spec
updated
added minimum load note
date
09/10/2009
04/17/2012
09/11/2012
07/19/2013
09/19/2013
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
