The maximum input voltage that can be applied to the TPS78825DBVT is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent damage to the device.
To ensure the stability of the output voltage, it's essential to use a suitable output capacitor with a low equivalent series resistance (ESR) and a high ripple current rating. A 10uF ceramic capacitor with an ESR of 10mΩ or less is recommended.
The minimum input voltage required for the TPS78825DBVT to operate is 2.7V, but it's recommended to keep it above 3V for optimal performance and to ensure the output voltage remains within the specified tolerance.
The TPS78825DBVT is rated for operation up to 125°C, but it's essential to ensure that the device is properly heatsinked and that the junction temperature (TJ) does not exceed 150°C. Exceeding the maximum TJ can reduce the device's lifespan and affect its performance.
The output voltage of the TPS78825DBVT can be calculated using the following formula: VOUT = 1.24V x (1 + R1/R2), where R1 and R2 are the resistors connected to the FB pin. The output voltage can be adjusted by changing the values of R1 and R2.
TPS78825DBVT datasheet
by Texas Instruments
