01-Aug-13

DC/DC

Converter

+Vin

+Vout

LOAD

C1

+

-

12 µH

-Vin

-Vout

C1 = 330 µF

C1 = 220 µF

12 Vin:

24 & 48 Vin:

JCK20

Models and Ratings

Input

Voltage

Output

Voltage

Output

Current

Maximum

Capacitive Load

Efficiency

Model

Number

No Load

Full Load

9-18 VDC

3.3 VDC

5.500 A

60 mA

1.74 A

10,000 µF

90%

JCK2012S3V3

5.0 VDC

4.000 A

60 mA

1.87 A

6,800 µF

92%

JCK2012S05

12.0 VDC

1.670 A

30 mA

1.92 A

1,000 µF

90%

JCK2012S12

15.0 VDC

1.330 A

30 mA

1.92 A

680 µF

90%

JCK2012S15

±12.0 VDC

±0.835 A

30 mA

1.94 A

±470 µF

89%

JCK2012D12

±15.0 VDC

±0.665 A

30 mA

1.94 A

±330 µF

89%

JCK2012D15

18-36 VDC

3.3 VDC

5.500 A

35 mA

0.86 A

10,000 µF

91%

JCK2024S3V3

5.0 VDC

4.000 A

35 mA

0.93 A

6,800 µF

93%

JCK2024S05

12.0 VDC

1.670 A

25 mA

0.95 A

1,000 µF

91%

JCK2024S12

15.0 VDC

1.330 A

25 mA

0.95 A

680 µF

91%

JCK2024S15

±12.0 VDC

±0.835 A

30 mA

0.96 A

±470 µF

90%

JCK2024D12

±15.0 VDC

±0.665 A

30 mA

0.96 A

±330 µF

90%

JCK2024D15

36-75 VDC

3.3 VDC

5.500 A

25 mA

0.43 A

10,000 µF

91%

JCK2048S3V3

5.0 VDC

4.000 A

25 mA

0.46 A

6,800 µF

93%

JCK2048S05

12.0 VDC

1.670 A

15 mA

0.47 A

1,000 µF

91%

JCK2048S12

15.0 VDC

1.330 A

15 mA

0.47 A

680 µF

91%

JCK2048S15

±12.0 VDC

±0.835 A

20 mA

0.48 A

±470 µF

90%

JCK2048D12

±15.0 VDC

±0.665 A

20 mA

0.48 A

±330 µF

89%

JCK2048D15

Notes

1. Input current specified at nominal 12, 24 V or 48 V input.

2. Cross regulation is ±5% when one output is at 100% and the other is varied

between 25% and 100%.

3. Measured with 20 MHz bandwidth and 1 µF ceramic capacitor across output rails.

4. For heatsink option add ‘-HK’ to the end of the part number.

5

3

4

2

1

0.40

(10.2)

Ø 0.02

(0.5)

Ø 0.04

(1.0)

Ø 0.04

(1.0)

0.20

(5.0)

0.40

(10.16)

0.40

(10.1)

0.60

(15.2)

0.60

(15.2)

0.80

(20.3)

0.20

(5.08)

0.20

(5.0) min.

0.10

(2.5)

0.40

(10.1)

0.40

(10.1)

0.10

(2.5)

Bottom View

6

0.20

(5.0)

2.00

(50.8)

1.00 (25.4)

2.00

(50.8)

Thermal Pad

Optional heatsink (-HK)

0.64

(16.3)

Mechanical Details

Application Notes

50%

25%

75%

100%

-40

-20

0

20

40

60

80

100

120

85

70 75

without heat-sink

with heat-sink

Derating Curve

External Output Trim

TRIM UP

4

5

TRIM DOWN

3

4

PIN CONNECTIONS

Pin

Single

Dual

1

+Vin

+Vin

2

-Vin

-Vin

3

+Vout

+Vout

4

Trim

Com

5

-Vout

-Vout

6

Remote On/Off

Remote On/Off

Remote On/Off Control

Output On >3.0 VDC or open circuit

Output Off <1.2 VDC or short circuit pins 2 & 6

Notes

1. All dimensions are in inches (mm).

2. Weight: 0.07 lbs (30 g)

3. Pin diameter: 0.04 ±0.002 (1.0 ±0.05)

4. Pin pitch tolerance: ±0.014 (±0.35)

5. Case tolerance: ±0.02 (±0.5)

Input Filter

For 3.3 V output:

Trim +10%, R = 10 k typical

Trim - 10%, R = 15 k typical

For 5 V output:

Trim +10%, R = 10 k typical

Trim - 10%, R = 5 k typical

For 12 V output:

Trim +10%, R = 22 k typical

Trim - 10%, R = 5 k typical

For 15 V output:

Trim +10%, R = 20 k typical

Trim - 10%, R = 5 k typical