The recommended layout and placement for the TRS3221CPWR involves placing the device close to the power source, using a solid ground plane, and keeping the input and output traces short and wide to minimize inductance and resistance. Additionally, it is recommended to place a 10uF capacitor between the VIN and GND pins to filter out noise.
To ensure the TRS3221CPWR is stable and does not oscillate, it is recommended to follow the recommended layout and placement guidelines, use a sufficient output capacitor (at least 10uF), and ensure that the input voltage is within the recommended range. Additionally, it is recommended to add a small capacitor (around 10nF) between the FB and GND pins to improve stability.
The maximum input voltage that the TRS3221CPWR can handle is 18V. Exceeding this voltage may damage the device.
The TRS3221CPWR is rated for operation up to 125°C. However, it is recommended to derate the output current and input voltage at high temperatures to ensure reliable operation. Consult the datasheet for more information on thermal derating.
The output voltage of the TRS3221CPWR can be calculated using the following formula: VOUT = VREF x (1 + R1/R2), where VREF is the internal reference voltage (1.25V), R1 is the resistance between the FB and VOUT pins, and R2 is the resistance between the FB and GND pins.
TRS3221CPWR datasheet
by Texas Instruments
