I am considering using the TPS63030 in a design.
My application requires 3 voltage rails: 3.3, 3.8, & 5.2.
I would use a TPS63030 to regulate the 3.8 V rail which would then feed an LDO (like the TPS77001) to regulate the 3.3 V rail. The maximum output current of the 3.8 V rail is 350mA.
A second TPS63030 would regulate the 5.2 V rail. The maximum output current of this rail is 100mA
Both TPS63030 devices would be powered from a 3.0 V to 6.0 V source.
The total capacitance on the 5.2 V rail must be less then 65 uF. My circuitry downstream of the 5.2 V regulator currently contains 46 uF of capacitance. I am working to limit the capacitance to 35 uF.
The total combined capacitance of the 3.8 V and 3.3 V rails must be less than 100 uF. The circuity downstream of these regulators currently contains 27 uF of capacitance.
The example application in the D/S cannot fit my application. Can the value of the inductor be increased and the values of the output capacitors be reduced to fit within these bounds?
Ideally I would like the value output capacitors to total no more than 20 uF. The inductor can be almost any size.
Thanks.
John
