The maximum input voltage that can be applied to the TPS3307-18DGNR is 18V, as specified in the datasheet. However, it's recommended to operate the device within the recommended operating conditions to ensure reliable operation and to prevent damage to the device.
To ensure stability, follow the layout guidelines in the datasheet, use a low-ESR capacitor for the output filter, and ensure the input capacitor is properly sized. Additionally, the datasheet provides a recommended PCB layout and component selection to minimize the risk of oscillation.
The minimum input capacitance required for the TPS3307-18DGNR is 1uF, as specified in the datasheet. However, it's recommended to use a higher capacitance value, such as 4.7uF or 10uF, to ensure stable operation and to filter out input voltage noise.
The TPS3307-18DGNR is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It's recommended to derate the device's output current and voltage according to the datasheet's thermal derating curves to ensure reliable operation in high-temperature environments.
The output voltage of the TPS3307-18DGNR can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (1.25V), and R1 and R2 are the resistors in the feedback network. The datasheet provides a detailed explanation of the output voltage calculation.
TPS3307-18DGNR datasheet
by Texas Instruments
