Intel ERP2U manual Voltage Regulation, Standby Outputs

SSI

ERP2U Power Supply Design Guide, V1.0

6.4.1Standby Outputs

STATUS

Required

The 5 VSB output shall be present when an AC input greater than the power supply turn on voltage is applied.

6.5Voltage Regulation

STATUS

Required

The power assembly output voltages must stay within the following voltage limits when operating at steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise specified in Section 5.9. All outputs are measured with reference to the return remote sense (ReturnS) signal. The 5 V, 12V1, 12V2, 12V3, – 12 V and 5 VSB outputs are measured at the power assembly connectors referenced to ReturnS. The +3.3 V is measured at its remote sense signal (3.3VS) located at the signal connector.

Table 13: Voltage Regulation Limits

	Parameter	MIN	NOM	MAX	Units	Tolerance
	+3.3 V (optional)	+3.20	+3.30	+3.46	Vrms	+5/-3%
	+5 V (optional)	+4.80	+5.00	+5.25	Vrms	+5/-4%
	+12V1	+11.52	+12.00	+12.60	Vrms	+5/-4%
	+12V2	+11.52	+12.00	+12.60	Vrms	+5/-4%
	+12V3 (optional)	+11.52	+12.00	+12.60	Vrms	+5/-4%
	-12 V	-11.40	-12.20	-13.08	Vrms	+9/-5%
	+5 VSB	+4.85	+5.00	+5.25	Vrms	+5/-3%
STATUS
Optional

Some system applications may require tighter regulation limits on the +5 V output. The optional regulation limits are shown below.

	Table 14: Optional +5V			Regulation Limits
Parameter	MIN	NOM	MAX		Units	Tolerance
+5 V	+4.85	+5.00	+5.25		Vrms	+5/-3%

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