50 Watt Single Output Half Brick DC/DC Converter

VKA50xS

18-36 V & 33 - 75V Input Range

High Efficiency: 87% Typical at

5V

100

µS 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

Corporate: www.cdtechno.com

Product: www.cdpowerelectronics.com

The VKA50xS 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 VKA50xS's proprietary

control circuitry responds to 50-100%

load steps in 100

µSeconds 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.

Safety per UL1950, EN 60950 and

CSA 22.2 #234

MODEL

INPUT

VOUT

IOUT

EFFICIENCY

VOLTAGE

(VDC)

(A)

MIN

TYP

VKA50LS03

3.3V

10.0

80

81

VKA50LS05

24VDC

5.0V

10.0

85

86

VKA50LS12

12.0V

4.2

87

88

VKA50LS15

(18-36)

15.0V

3.3

88

89

VKA50LS24

24.0V

2.1

89

90

VKA50MS03

3.3V

10.0

81

82

VKA50MS05

48VDC

5.0V

10.0

86

87

VKA50MS12

12.0V

4.2

88

89

VKA50MS15

(33-75)

15.0V

3.3

89

90

VKA50MS24

24.0V

2.1

89

90

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