JCK50

Bottom View

Trim Up

Ru

6

5

4

1

2

3

JCK50

Bottom View

6

5

4

1

2

3

JCK50 Series

www.xppower.com

21 July 16

DC-DC Converter

Application Notes

Models

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

Voutx0.99

Voutx0.98

Voutx0.97

Voutx0.96

Voutx0.95

Voutx0.94

Voutx0.93

Voutx0.92

Voutx0.91

Voutx0.90

3V3

315.932 k

Ω 172.257kΩ 112.528kΩ 79.806kΩ 59.153kΩ 44.930kΩ 34.539kΩ 26.616kΩ 20.374kΩ 15.330kΩ

5V

230.566 k

Ω 106.182kΩ 64.301kΩ 43.281kΩ 30.643kΩ 22.207kΩ 16.177kΩ 11.651kΩ 8.129kΩ 5.310kΩ

12V

327.351 k

Ω 142.100kΩ 83.928kΩ 55.470kΩ 38.591kΩ 27.418kΩ 19.477kΩ 13.542kΩ 8.939kΩ 5.264kΩ

15V

433.811 k

Ω 174.916kΩ 100.946kΩ 65.907kΩ 45.468kΩ 32.077kΩ 29.96k 15.596kΩ 10.165kΩ 5.842kΩ

External Output Trimming

Trim Down Resistor Values (Rd)

Models

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

Voutx1.01

Voutx1.02

Voutx1.03

Voutx1.04

Voutx1.05

Voutx1.06

Voutx1.07

Voutx1.08

Voutx1.09

Voutx1.10

3V3

544.612 k

Ω 184.034kΩ 103.305kΩ 67.715kΩ 47.676kΩ 34.824kΩ 25.880kΩ 19.297kΩ 14.249kΩ 10.255kΩ

5V

244.527 k

Ω 113.776kΩ 70.631kΩ 49.142kΩ 36.274kΩ 27.707kΩ 21.592kΩ 17.010kΩ 13.447kΩ 10.598kΩ

12V

371.425 k

Ω 183.645kΩ 117.623kΩ 83.929kΩ 63.489kΩ 49.767kΩ 39.919kΩ 32.508kΩ 26.728kΩ 22.094kΩ

15V

347.293 k

Ω 178.523kΩ 115.235kΩ 82.084kΩ 61.683kΩ 47.863kΩ 37.863kΩ 30.336kΩ 24.430kΩ 19.682kΩ

Trim Down Resistor Values (Ru)