MIC22700_10 Datasheet, PDF (15/21 Pages) Micrel Semiconductor – 1MHz, 7A Integrated Switch High-Efficiency Synchronous Buck Regulator

Micrel, Inc.
Ratio Metric Tracking:
MIC22700
An alternative method here shows an example of a V_DDQ
and V_TT solution for a DDR memory power supply. Note
that POR is taken from Vo1 as POR₂ will not go high.
This is because POR is set high when FB > 0.9⋅V_REF. In
this example, FB₂ is regulated to ½⋅V_REF:
March 2010
15
M9999-031810-B