JCM30 Series
www.xppower.com
DC-DC Converter
04 Oct 16
Trim Up
R
u
JCM30
Bottom View
JCM30
Bottom View
6
5
4
1
2
3
6
5
4
1
2
3
Trim Down
Rd
L
JCM30
C1 C2 C3 C4 D1
L1
L2
L
Load
C1
C1 = 1206, 335 k/50 V, X7R
L = 0.82 µH
JCM30
Load
Application Notes
Models 1% 2% 3% 4% 5% 6% 7% 8% 9% 10%
3
V3
8
17.5 k
3
62.2 k
2
15.4 k
1
43.0 k
9
9.7 k
7
1.1 k
5
0.6 k
3
5.3 k
2
3.4 k
1
4.0 k
5
V
1
19.9 k
6
3.6 k
4
0.4 k
2
7.7 k
1
9.7 k
1
4.2 k
1
0.2 k
7
.1 k
4
.7 k
2
.7 k
12V 345.0 k 164.8 k 98.9 k 64.6 k 43.7 k 29.6 k 19.4 k 11.7 k 5.7 k 0.87 k
15V 174.3 k 91.1 k 56.6 k 37.7 k 25.8 k 17.6 k 11.6 k 7.0 k 3.5 k 0.55 k
External Output Trimming
Trim Down Resistor Values (Rd)
Models 1% 2% 3% 4% 5% 6% 7% 8% 9% 10%
3V3 567.6 k 263.2 k 158.5 k 105.5 k 73.5 k 52.1 k 36.8 k 25.2 k 16.3 k 9.1 k
5V 618.0 k 223.4 k 133.3 k 93.4 k 70.9 k 56.4 k 46.4 k 38.9 k 33.2 k 28.7 k
12V 1015.7 k 448.9 k 280.6 k 199.8 k 152.4 k 121.2 k 99.1 k 82.6 k 69.9 k 59.7 k
15V 661.5 k 231.3 k 134.0 k 91.0 k 66.8 k 51.3 k 40.4 k 32.5 k 26.4 k 21.5 k
Trim Up Resistor Values (Ru)
EMI Filter
(Only needed for 12 V input versions)
EFT/Surge Filter
C1 C2 L1 L2 C3 C4 D1
JCM3012 330 µF/100 V 470 µF/100 V 1 µH 1 µH 330 µF/100 470 µF/100 None
JCM3024 330 µF/100 V None Short Short None None TVS, 58 V, 3 kW
JCM3048 330 µF/100 V None Short Short None None TVS, 120 V, 3 kW
