manual

03
SST-ST40F-ESB
NOTE:
Noise test should be measured with 20 MHz bandwidth frequency oscilloscope. The output terminal
shall add a tantalum capacitor of 10uF in parallel with a ceramic capacitor of 0.1uF.
Maximum continuous total DC output power should not exceed 400W.
Maximum continuous combined load on +3.3VDC and +5VDC outputs shall not exceed 103W.
Maximum combined load on 12V outputs shall not exceed 360W.
Output
Voltage
+5V
+3.3V
+12V
-12V
+5Vsb
Load
MIN
0.2A
0.1A
0.6A
0.0A
0.0A
Range
MAX
20.0A
20.0A
30.0A
0.3A
2.5A
Peak
-
-
-
-
3.5A
Regulation
±5%
±5%
±5%
±10%
±5%
Ripple & Noise
P-P Max.
50mV
50mV
120mV
120mV
50mV
Load
Light Load.
Typical Load
Full Load
+5V
2.18 A
5.45 A
10.90 A
+3.3V
2.18 A
5.45 A
10.90 A
+12V
6.59 A
16.47 A
32.95 A
-12V
0.05 A
0.13 A
0.26 A
+5Vsb
0.44 A
1.10 A
2.20 A
3.2 Remote On/Off Controlled mode
The PSON# signal is required to remotely turn on/off the power supply, PSON# is an active low signal
that turns on the output power rails. When this is not pulled low by the system, or left open, the outputs
(except the +5VSB) turn off. This signal is pulled to a standby voltage by a pull-up resistor internal to
the power supply.
3.3 Regulation
The cross regulation defined as follows, the output regulation should be within the specified range.
3.4 Rise Time
DC output rise time is less than 20 mS at nominal line and full load.
TTL level "H" 2.0 V - 5.25 V
"L" 0.0 V – 1.0 V