Intel EPS1U User Manual
Page 19
SSI
EPS1U Power Supply Design Guide, V1.1
6.7 Capacitive Loading
STATUS
Required
The power supply shall be stable and meet all requirements with the following capacitive loading ranges.
Table 13: Capacitive Loading Conditions
Output
MIN
MAX
Units
+3.3 V
10
6,800
µ
F
+5 V
10
4,700
µ
F
+12 V
10
11,000
µ
F
-12 V
1
350
µ
F
+5 VSB
1
350
µ
F
6.8 Ripple / Noise
STATUS
Required
The maximum allowed ripple/noise output of the power supply is defined in Table 14 below. This is measured
over a bandwidth of 0 Hz to 20 MHz at the power supply output connectors. A 10
µ
F tantalum capacitor in
parallel with a 0.1
µ
F ceramic capacitor are placed at the point of measurement.
Table 14: Ripple and Noise
+3.3 V
+5 V
+12 V
-12 V
+5 VSB
50 mVp-p
50 mVp-p
120 mVp-p
120 mVp-p
50 mVp-p