ATX12VO (12V Only) Desktop Power Supply
Design Guide
DC Voltage Regulation – REQUIRED
The DC output voltages are required to remain within the regulation ranges shown in the Table 4-2, when measured at the load end of the output connectors under all line, load, and environmental conditions specified in Chapter 7.
The lower voltage range for +12V is allowed to be -7% to allow for the power excursion requirements now described in Section 3.1. To compensate for these power excursions the nominal voltage could be changed to 12.1 or 12.2 Volts, depending on Power Supply design.
Table 4-2: DC Output Voltage Regulation
Output | Range | Min | Nominal | Max | Unit |
+12V1DC1 | +5% / -7% | +11.20 | +12.00 | +12.60 | V |
+12V2DC2 | +5% / -7% | +11.20 | +12.00 | +12.60 | V |
+12VSB | +5% / -7% | +11.20 | +12.00 | +12.60 | V |
- Voltage tolerance is required at all connectors.