820152 DC-DC Supply 12Vin 120W
KTD-00695-D
Public User Manual
Date: 2009-11-03 Page
2 of 4
Introduction
The 820152 DC-DC Power Supply is a fully compliant ATX power supply designed to power a wide variety of
motherboard like the KT690mITX, 786LCD/mITX, 886LCD-M and 986LCD-M families of boards. It has
included cable kit inclusive P4-12V cable, as required by the KT690mITX and 986LCD-M families, and it is
supporting a wider temperature range than the standard embedded PC range 0 - 60ºC. When the DC-DC
Supply is installed it will not influence the total height of the motherboard, however for some boards some free
space is needed near the ATX Power Connector: The 886LCD-M/mITX requires 5 mm free space and the
KT690mITX and 986LCD-M/mITX families of boards require 10 mm free space.
The power supply shall be powered by regulated 12V with the tol5% -3%. The 12V is switched and
then used as 12V output.
It is recommended to make sure that the DC-DC Power Supply can be used in a specific application by
measure the maximum load of each voltage and then compare it to the maximum allowed load. In order to
estimate if the DC-DC Power Supply is suitable for a specific project the following table can be used.
The allowed load (without forced air) can be compared to the maximum load of the actual board. Maximum
load from LCD, HDD, PCI, AGP cards must be taken into consideration to make sure none of the outputs is
overloaded. The “green” numbers are the available power for these loads.
* Note that there is no power left over for a display requiring 5V supply voltage.
Voltage Output
Max load / [A]
(fan less)
Peak Load / [A]
(< 60 sec.)
5V 4,8
8
5VSB 1,5
2
3.3V 4,8
8
-12V 0,05
0.1
12V 6
10
Loads in Ampere
KT690mITX 786LCD/mITX 886LCD-M 986LCD-M
Voltage Output
Turion
1.6G
Sempron
1.00G
733/133 400/100
1600/400 800/400 Duo
2GHz Celeron
1.06G
5V 3,2
1,6
2,4
2,4
1,7
3,1
1
3,8
4,7
0,1
*
3
1,8
2,5
2,3
2,1
2,7
5VSB 0,3
1,2
0,3
1,2
0,24
1,25
0,24
1,25
1,2
0,3
1,2
0,3
0,7
0,8
0,2
1,3
3.3V 1,3
3,5
1,3
3,5
3,2
1,6
2,5
2,3
2,6
2,2
2,6
2,2
1,3
3,5
1,6
3,2
-12V -
0,05
-
0,05
-
0,05
-
0,05
-
0,05
-
0,05
0,05
0,0
-
0,05
12V 2,4
3,6
0,8
5,2
0,4
5,6
0,3
5,7
0,6
5,4
0,6
5,4
2,7
3,3
0,6
5,4