25VT6A5VGEVB
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8
APPENDIX
Table of AMD VID Settings for NCP5386B Controller
The Grayhill 76PSB08ST 8 position switch used for
setting the output voltage of the synchronous buck
converter. Figure 7 below shows the pin assignment of the
switch. VID0 – VID5 set the output voltage. DAC, and EN
is the enable pin of the controller (controller reset). EN must
always be in the up position (1) unless a reset is performed.
To set the output voltage to 1.2 V, for example: VID0 = 0
(down), VID1, VID2, VID3 = 1 (up), VID4 = 0 (down), and
VID5, DAC, EN = 1 (up).
Figure 7. Grayhill Switch Pin Labeling
Table 3. VID CONTROL SETTINGS FOR OUTPUT VOLTAGE
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
V
OUT
(V)
Tolerance
VID0
VID1
VID2
VID3
VID4
VID5
DAC
EN
0
0
0
0
0
1
1
1
1.5625
±
0.5%
1
0
0
0
0
1
1
1
1.5375
±
0.5%
0
1
0
0
0
1
1
1
1.5125
±
0.5%
1
1
0
0
0
1
1
1
1.4875
±
0.5%
0
0
1
0
0
1
1
1
1.4925
±
0.5%
1
0
1
0
0
1
1
1
1.4400
±
0.5%
0
1
1
0
0
1
1
1
1.4125
±
0.5%
1
1
1
0
0
1
1
1
1.3875
±
0.5%
0
0
0
1
0
1
1
1
1.3625
±
0.5%
1
0
0
1
0
1
1
1
1.3375
±
0.5%
0
1
0
1
0
1
1
1
1.3125
±
0.5%
1
1
0
1
0
1
1
1
1.2875
±
0.5%
0
0
1
1
0
1
1
1
1.265
±
0.5%
1
0
1
1
0
1
1
1
1.2400
±
0.5%
0
1
1
1
0
1
1
1
1.2125
±
0.5%
1
1
1
1
0
1
1
1
1.1900
±
0.5%
0
0
0
0
1
1
1
1
1.1625
±
0.5%
1
0
0
0
1
1
1
1
1.1375
±
0.5%
0
1
0
0
1
1
1
1
1.1125
±
0.5%
1
1
0
0
1
1
1
1
1.0900
±
0.5%
0
0
1
0
1
1
1
1
1.0650
±
0.5%
1
0
1
0
1
1
1
1
1.0400
±
0.5%
0
1
1
0
1
1
1
1
1.0125
±
0.5%
1
1
1
0
1
1
1
1
0.9875
±
0.5%
0
0
0
1
1
1
1
1
0.9625
±
0.5%
1
0
0
1
1
1
1
1
0.9375
±
0.5%
0
1
0
1
1
1
1
1
0.9125
±
0.5%
1
1
0
1
1
1
1
1
0.8900
±
0.5%
0
0
1
1
1
1
1
1
0.8650
±
0.5%
1
0
1
1
1
1
1
1
0.8400
±
0.5%
0
1
1
1
1
1
1
1
0.8125
±
0.5%
1
1
1
1
1
1
1
1
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