Datasheet

LM10011 Control and Design Software

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9.6 Margin Control

The main application of the LM10011 VID current DAC is voltage margining. The Margin Control section,

Figure 12, allows the user to set a desired margin weight and adjust the output voltage up or down based

on the desired margin weight.

Enter the desired margin weight in the Margin Desired box as a percentage of the Nominal Vout (Actual)

box in the Output Voltage section. The Margin Actual (%) and Margin Actual (mV) boxes will show what

the actual margining value is based on the VID controller codes and RFB1 and RFB2 values. Margin

Actual (bits) shows the number of bits the LM10011 will step for each press of the Margin Down and

Margin Up buttons. After the user has set the margin value, the output voltage can be increased or

decreased by the margin value by pressing the margin up and margin down buttons.

Figure 12. Margin Control Section

LM10011 Evaluation Module SNOU108A–December 2012–Revised April 2013

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