
75 Watt Single Output Half Brick DC/DC Converter
VKA75xS
18-36 V & 33 - 75V Input Range
High Efficiency: 87% Typical at
5V
100
S Transient Response 50-
100% Load Step
420 kHz Fixed-Frequency
Operation
Remote Sense
Operation to +100
°C Baseplate
Temperature
Primary Remote On/Off, Choice of
Pos/Neg Logic
Adjustable Output Voltage
Continuout Short-Circuit Protection
Thermal Shutdown
Case Ground Pin
UL/CUL 60950, VDE EN60950
Corporate: www.cdtechno.com
Product: www.cdpoweronline.com
The VKA75xS Series DC/DC
converters present an economical and
practical solution for distributed
power system architectures which
require high power density and
efficiency while maintaining system
modularity and upgradeability. With
the ability to operate over a wide
input voltage range of 18 to 36 and
33 to 75 volts, these modules are
ideal for use in battery backup
applications common in todays'
telecommunication and electronic
data processing applications. The
output is fully isolated from the
input, allowing for a variety of
polarity and grounding configura-
tions.
The VKA75xS's proprietary
control circuitry responds to 50-100%
load steps in 100
Seconds to within
1% nominal Vout.
The patented fixed frequency
architecture combined with surface
mount technology results in a com-
pact, efficient and reliable solution to
DC/DC conversion requirements.
MODEL
INPUT
VOUT
IOUT
EFFICIENCY
VOLTAGE
(VDC)
(A)
MIN
TYP
VKA75LS02
2.0V
15.0
75
76
VKA75LS03
3.3V
15.0
80
81
VKA75LS05
24VDC
5.0V
15.0
85
86
VKA75LS12
12.0V
6.3
87
88
VKA75LS15
(18-36)
15.0V
5.0
88
89
VKA75LS24
24.0V
3.1
89
90
VKA75MS02
2.0V
15.0
76
77
VKA75MS03
3.3V
15.0
81
82
VKA75MS05
48VDC
5.0V
15.0
86
87
VKA75MS12
12.0V
6.3
88
89
VKA75MS15
(33-75)
15.0V
5.0
89
90
VKA75MS24
24.0V
3.1
89
90
PRODUCT SELECTION CHART
1
VKA75xS Rev D 1/2004
Product: www.cdpoweronline.com