cui.com

date 08/31/2021

│ page 2 of 6

CUI Inc

│ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER

INPUT

parameter

conditions/description

min

typ

max

units

operating input voltage

9

18

36

12

24

48

18

36

72

Vdc

Vdc

Vdc

under voltage lockout

12 Vin power up 8.8 V

12 Vin power down 8.0 V

24 Vin power up 17 V

24 Vin power down 16 V

48 Vin power up 34 V

48 Vin power down 32 V

8.8

8.0

17

16

34

32

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

input filter

PI type

OUTPUT

parameter

conditions/description

min

typ

max

units

single and dual output models

±0.5

%

triple output models

main

auxillary

±1.0

±3.0

%

%

single and dual output models

±0.5

±1.0

%

%

dual positive output models

3.3V

5V

±1.5

±4.0

%

%

triple output models

main

auxillary

±1.0

±4.0

%

%

voltage accuracy

single output models

±1.5

%

dual positive output models

3.3V

5V

±1.5

±3.0

%

%

triple output models

main

auxillary

±1.5

±5.0

%

%

PART NUMBER KEY

Input Voltage

Output Voltage

Base Number

Output:

S = single

D = dual

T = triple

MODEL

input

voltage

output

voltage

input

current

output

current

ripple

efficiency

typ

(Vdc)

range

(Vdc)

(Vdc)

no load

(mA)

full load

(mA)

max

(mA)

min

(mA)

max

(mVp-p)

typ

(%)

VCD40-D48-T312

48

36~72

3.3/±12

50

688

6000/±400

600/±40

100

89

VCD40-D48-T315

48

36~72

3.3/±15

50

690

6000/±300

600/±30

100

89

VCD40-D48-T512

48

36~72

5/±12

50

938

6000/±400

600/±40

100

88

VCD40-D48-T515

48

36~72

5/±15

50

903

6000/±300

600/±30

100

90

notes:

1. ripple and noise are measured at 20 Hz BW

Additional Resources: Product Page | 3D Model | PCB Footprint