Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency PCB design guidelines, such as keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths.
The selection of input and output capacitors depends on the specific application requirements, such as the input voltage range, output voltage, and ripple current. A good starting point is to use X5R or X7R ceramic capacitors with a voltage rating of at least 1.5 times the maximum input voltage. The output capacitor should be selected based on the output voltage and ripple current requirements.
The TPS40101RGET is rated for operation from -40°C to 125°C, but the maximum ambient temperature range may be limited by the specific application and the thermal design of the system. It's essential to ensure that the device is operated within its specified thermal limits to ensure reliability and performance.
To ensure stability, it's essential to follow the recommended PCB layout, select the right input and output capacitors, and ensure that the device is operated within its specified input voltage range. Additionally, the output voltage should be set to a value that is within the device's specified output voltage range, and the output capacitor should be selected to ensure that the output voltage ripple is within the specified limits.
The TPS40101RGET is capable of delivering up to 1A of output current, but the actual output current capability may be limited by the specific application requirements, such as the input voltage, output voltage, and thermal design of the system. It's essential to ensure that the device is operated within its specified current limits to ensure reliability and performance.
TPS40101RGET datasheet
by Texas Instruments
