Switching Regulator Design

[Mikefly123]

Background

So, we are looking at using the LT8610 from Analog Devices as our new standard voltage regulator thanks to some recent test data from ESA that shows very good radiation tolerance for a COTS chip. It is also marginally more power efficient than the Ti TPS5422X line of switching regulators that the PROVES Kit is currently using.

The ESA Test Report

LT8610AC SEE Test Report.pdf

What Needs to be Done

We need to start by creating reference schematics for all of the voltage regulators that we'll want on the PROVES Prime board and do some initial component selection for them all as well.

The following voltage rails are desired:

• 3v3 (Primary for the uController and Sensors)
• 3v5 (Dedicated to just the radio and paired with an LDO)
• 5v (For payloads and other peripherals)

Recommended Design Tools

LT PowerCAD might come in handy for designing these schematics!

[rrakushkin]

Regulator Power Efficiency Google Slides with the plan on the last slide and this is the link to mini work in progress BOM with components