AME5269 Datasheet, PDF (12/18 Pages) Analog Microelectronics – 2A, 28V, 340KHz Synchronous Rectified Step-Down Converter

AME
AME5269
2A, 28V, 340KHz Synchronous
Rectified Step-Down Converter
n Detailed Description (Contd.)
3. Determine if the second compensation capacitor (C6) is
required. It is required if the ESR zero of the output capaci-
tor is located at less than half of the switching frequency, or
the following relationship is valid:
1
< ^fS
2π ×C 2 × RESR 2
If this is the case, then add the second compensation ca-
pacitor (C6) to set the pole fP3 at the location of the ESR
zero. Determine C6 by the equation:
C6 = ^{C2 × RESR}
R3
12
Rev. B.01