SilverStone ST45SF-G - Manual (Page 2)

SFX Form Factor
SPECIFICATION
SFX Form Factor
ST45SF-G
450W Switching Power Supply
Active PFC Circuit
Full Range Input
01
This specification describes the requirements of 450W with full range voltage,
switching power supply with a SFX form-factor.
1.1 AC input requirements
The input voltage, current, and frequency requirements for continuous operation
are stated below.
1.2 Inrush current regulation
The power supply must meet inrush requirements for any rated AC voltage, during
turn on at any phase of AC voltage, during a single cycle AC dropout condition,
during repetitive ON/OFF cycling of AC, and over the specified temperature range
(Top). The peak inrush current shall be less than the ratings of its critical components
(including input fuse, bulk rectifiers, and surge limiting device).
Table 1 AC Input Line Requirements
Power factor correction (PF)>0.90 at full load.
Parameter
Vin
Vin Frequency
Iin
Min
90
47
Max
264
63
Unit
VACrms
Hz
A
Nom.
100
60
7.0
240
50
3.5
1. AC INPUT
02
2. DC OUTPUT
2.1 DC voltage regulation
2.2 LOAD RANGE
2.3 Output Ripple
Parameter
+3.3V
+5V
+12V
-12V
+5VSb
At no load,3.3V output +/-5% regulation limits do not apply.
(1) The maximum combined load on +3.3V and +5V outputs shall not exceed 90W.
(2) Maximum continuous total DC output power should not exceed 450W.
Range
±3%
±3%
±3%
±10%
±5%
Min
+3.20
+4.85
+11.64
-10.8
+4.75
Nom.
+3.3
+5.0
+12.0
-12.0
+5.0
Max
+3.39
+5.15
+12.36
-13.2
+5.25
Unit
Volts
Volts
Volts
Volts
Volts
Parameter
+3.3V
+5V
+12V
-12V
+5VSb
Parameter
+3.3V
+5V
+12V
-12V
+5VSb
Ripple&Noise
50
50
120
120
50
Unit
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
Min
0
0
0
0
0
Nom.
-
-
-
-
-
Max
19
14
37
0.3
2.5
Peak Unit
Amps
Amps
Amps
Amps
Amps
2.3.1 Ripple regulation