JAJSKQ0A December 2020 – December 2022 TPS548B28
PRODUCTION DATA
The capacitor placed on the SS/REFIN pin can be used to extend the soft-start time past the internal 1.5-ms soft start. This example uses a 3.7-ms soft-start time and the required external capacitance can be calculated with Equation 27. In this example, a 220-nF capacitor is used.
A minimum capacitor value of 1 nF is required at the SS/REFIN pin. The SS/REFIN capacitor must use the VSNS– pin for its ground.