MitxPC picoPSU-120-WI-25 User Manual
Page 3

ATX DC-DC Converter Series
2) Connect a 12-25VDC power adapter (peak should not exceed 
26.5V) to the input connector.
3) Turn on the PC using the motherboard ON/OFF switch
Typical configuration
The picoPSU-120-WI-25 has been tested with all mini-ITX board under 
virtually any disk/floppy/CDROM/PCI configuration. 
Removing the picoPSU-120-WI-25
In order to remove the picoPSU you must release the power connector 
latch and then remove the unit. Gently lift the picoPSU out from the 
ATX connector, by grabbing from the picoPSU PCB, not from 
components or the wire harness.
Specifications, picoPSU-120-WI-25, 120Watts DC-DC ATX PSU
Power Ratings (Max Load = 120 Watts)
Volts (V)
Max Load (A)
Peak Load (A)
Regulation %
5V
6A
8A
+/- 1.5%
5VSB
1.5A
2A
+/- 1.5%
3.3V
6A
8A
+/- 1.5%
-12V
0.1A
0.1A
+/- 5%
12V
6A
8A
+/- 3%
At max load, forced air ventilation is required. For fanless operation and/or high V(In) de-rate 
the combined output of the 3.3, 5V and 12V rails by ~20-40%. Peak load should not exceed 60 
seconds.
Efficiency Ratings, 3.3 and 5V rail @ 16V input
CH1=5V
Efficiency (%)
CH2=3.3V
Efficiency (%)
1A
86%
1A
85%
3A
94%
3A
93%
5A
96%
5A
95%
8A
93%
8A
91%
picoPSU-120-WI-25 Quick Installation Guide
Page 3
