Store

🧮 Linear regulator heat calculator

Drag the input voltage and load current, pick an output voltage and heatsink option — watch the TO-220 package glow red-hot as heat builds up. Shows power dissipated, efficiency, and junction temperature with thermal shutdown warnings.

Maddy, co-founder of Little Bird

Need help? We're here for you!

Hi, I'm Maddy. My team and I are ready to help with your order or any questions.