MIC24046-H Datasheet, PDF (19/24 Pages) Micrel Semiconductor – Pin-Programmable, 4.5V − 19V, 5A Step-Down Converter

Micrel, Inc.
Output Voltage Soft-Start Rate
The MIC24046-H features internal analog soft-start, such
that the output voltage can be smoothly increased to the
target regulation voltage. The soft-start rate given in the
Electrical Characteristics is referred to the error amplifier
reference, and therefore the effective soft-start rate value
seen at the output of the module has to be scaled
according to the internal feedback divider attenuation
values listed in Table 5. To calculate the effective output
voltage soft-start slew rate SS_SR_OUT based on the
particular output voltage setting and the reference soft-
start slew rate SS_SR, use the following formula:
SS _ SR_OUT = A ⋅ SS _ SR
Eq. 24
Where:
The value of A (amplification, A =1 + R2/R1 ) is given in
the right column of Table 5.
MIC24046-H
July 7, 2015
19
Revision 1.1