2020-03-22 08:27 AM
2020-03-23 02:24 AM
The Nucleo-64 boards come already equipped with a LD1117S50TR and support external VIN 7V-12V DC.
2020-03-23 12:06 PM
If this is being connected in a real car, or to a real engine and automobile electrical system, designing for 12VDC input will NOT be sufficient. Vehicle power systems are hostile environments, with voltage spikes and dump currents/voltages that far exceed 12V. In fact, nominal voltage is 13-14V with the engine running. There are specially designed voltage regulator ICs for this.
One example:
2020-03-23 12:29 PM
Thank you for your advice. You're right but I need current limit at discovery board . I would like to use this buck converter other sensor interfaces.