The current linear regulator dissipates 1.555W of heat when using the 12V DC input. Total 3.3V rail load is estimated at about 178mA, so the regulator should be replaced with one spec'd for 200mA. We might want to change it to a switching regulator in order to improve efficiency.
The current linear regulator dissipates 1.555W of heat when using the 12V DC input. Total 3.3V rail load is estimated at about 178mA, so the regulator should be replaced with one spec'd for 200mA. We might want to change it to a switching regulator in order to improve efficiency.