Power Consumption - Kontron KTQ87/mITX User Manual

KTD-N0882-D

2.5 Power Consumption

In order to ensure safe operation of the board, the ATX12V power supply must monitor the supply
voltage and shut down if the supplies are out of range – refer to the hardware manual for the actual
power supply specification. Please note, In order to keep the power consumption to a minimal level,
boards do not implement a guaranteed minimum load. In some cases, this can lead to compatibility
problems with ATX power supplies, which require a minimum load to stay in regulation. The
KTQ87/mITX board must powered through the ATX+12V (4-pole) and the ATX/BTX (24-pole) connector
using standard ATX power supply.
ATX12V supply: Both ATX+12V connector and ATX/BTX connector must be used in according to the
ATX12V PSU standard.
Warning: Hot Plugging power supply is not supported. Hot plugging might damage the board.
The requirements to the supply voltages are as follows:
Supply
VCC3.3 3.135V
Vcc
+12V
–12V –13.2V
-5V -5,50V
5VSB
Page 19
Min Max Note
3.465V
Should be ±5% for compliance with the ATX specification
4.75V 5.25V
Should be ±5% for compliance with the ATX specification.
Should be +5/ -0% to meet the USB standard.
11.4V 12.6V
Should be ±5% for compliance with the ATX specification
–10.8V
Should be ±10% for compliance with the ATX specification
-4.5V Not required for the KTQ87 boards
4.75V 5.25V
Should be ±5% for compliance with the ATX specification
System Specification
KTQ87/mITX Users Guide