AV-DCDC-100
Preliminary Datasheet  (02.02.2001)

The AV-DCDC-100 is a low power switching power supply for PCMotherboards, enclosed
in a standard PC Power supply case.

It’s wide input voltage range allows use in many applications like in Cars.

Specifications:
Input Voltage Range: 10.5 – 15.5 V
Input Current: 0.2 – 6.5 A
Input peak Current: 10 A

Output Voltages:
+12V / 5 A (7A max) , Eff. ~ 60-80 %
+5 V / 5 A (7A max.), Eff. ~ 70-90 %
-12V / 0.7A (1A max.), Eff. ~ 50 %

Absolut maximum ratings*¹:
Input Voltage: 8.5 – 18.5 V
Outputs: +12V / 8A
+ 5V / 7.5A
-12V / 1A

Ambient Temperature: 65°C
Short Circuit at any Output: Not longer than 10s
 

*¹Absolute Maximum Ratings indicate limits beyond which damage to the device may
occur.

Efficiency :
 

Voltage / Current	0.5A	1A	2A	3A	4A	5A	6A
+5V	77%	81%	80%	79%	78%	77%	75%
+12V	20%	45%	66%	75%	80%	80%	-

Graphic overview of Efficiency as PDF
 
 
 

 
Functional Description:

The +12V/-12V/-5V Converter Part is build in a push-pull configuration switching a low loss transformers
primary windings by 2 low RdsOn FET’s. On the secondary site are high speed Shottky rectifiers to reduce
losses and big capacitors, especially designed for switching power supplys.

The +5V part is realized by a integrated power switching Circuit (LM2575), combined with an external P-FET, low loss inductors, shottky
rectifiers and big capacitors.
 

The Semiconductors are directly mounted on a 3-part heatsink wich is supported by a Fan (12V).