EPISODE · Feb 19, 2024 · 9 MIN
The Great Search: Classic LM7805 TO-220 5V Regulator
from Adafruit Industries · host Adafruit Industries
This Great Search is a big throwback to every electrical engineer's first power supply. The LM7805 is a mainstay regulator, available in TO-220 package, as well as TO-92 and SMT. Today, we found a social media post of someone repairing a SEGA Master System (https://twitter.com/nosIndulgences/status/1758586503868080259) where they needed to replace the LDO. Let's look for a drop-in replacement with 1A or more of current. Also, maybe we'll peek at some alternative products that can provide more current output or lower drop-out. See the chosen part on DigiKey https://www.digikey.com/en/products/detail/stmicroelectronics/L7805CV/585964 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
What this episode covers
This Great Search is a big throwback to every electrical engineer's first power supply. The LM7805 is a mainstay regulator, available in TO-220 package, as well as TO-92 and SMT. Today, we found a social media post of someone repairing a SEGA Master System (https://twitter.com/nosIndulgences/status/1758586503868080259) where they needed to replace the LDO. Let's look for a drop-in replacement with 1A or more of current. Also, maybe we'll peek at some alternative products that can provide more current output or lower drop-out. See the chosen part on DigiKey https://www.digikey.com/en/products/detail/stmicroelectronics/L7805CV/585964 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
NOW PLAYING
The Great Search: Classic LM7805 TO-220 5V Regulator
No transcript for this episode yet
Similar Episodes
Apr 21, 2026 ·73m
Apr 18, 2026 ·14m
Apr 18, 2026 ·95m
Apr 15, 2026 ·55m
Apr 13, 2026 ·68m
Apr 11, 2026 ·59m