Doubt regarding the minimum guaranteed current output from the two voltage regulators of this IC: TLE9471-3ES V33

[ananthuv10]

Hi,

I would like to know the minimum guaranteed output current of this 3.3V regulator and 5V regulator at maximum junction temperature, also please provide the calculations used to get this answer

IC: TLE9471-3ES V33 

[SuhasBobade · Accepted solution]

Hi ananthuv10,

Thanks for posting your query.

3.3V Low-Drop Buck Voltage Regulator supports up to 500mA of output current. For higher operating temp i.e. 125Deg, it is safe to draw up to 300mA based on cooling area provided on the PCB.

5V Low-Drop Linear Voltage Regulator supports up to 100mA.

For thermal calculations kindly refer to the 2^nd chapter of the below-mentioned user guide.

https://www.infineon.com/dgdl/Infineon-SBCLite_UG-UM-v01_00-EN.pdf?fileId=5546d46265f064ff01661ff16c...

kindly feel free to ask if you need any other support or information.

Thanks & Regards,

Suhas