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Original question:

TPS61240: Could you review my schematic and board layout?

TPS61240: Need help designing a boost converter to power some 5V LEDs from a CR2032 battery

Giacomo Felletti
Prodigy 10 points

Part Number: TPS61240

Tool/software:

Hi! First time here,
i'm designign a boost converter for a small PCB that i'm doing: it has an ATtiny MCU and 25 addressable LEDs and the whole board is powered by a coin 3V battery (CR2032).
I've did some tests with the latest prototype and the whole board with the current firmware draws about 15-25mA, which is a bit too high for this type of battery but it should be okay.
I would like to have a stable 4-5V output with an input range that varies between 2.3 and 3.3V (CR2032).

Here's my current schematic for the step-up converter:


Does this approach make sense for the components and requirements? Are there any optimizations or potential issues I should look out for (e.g., inductor selection, capacitor sizing, etc.)?
Jack