Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using bypass capacitors to reduce noise and oscillations.
To ensure stability, follow the recommended compensation network values and layout, and ensure that the output capacitor is properly sized and placed. Additionally, consider adding a zero-pin or a feedforward capacitor to improve stability. It's also important to simulate the design using SPICE models or other simulation tools to identify potential stability issues.
The maximum input voltage is not explicitly stated in the datasheet, but it's generally recommended to limit the input voltage to the maximum rating of the device, which is 5.5V for the LMV792MMX/NOPB. Exceeding this voltage can cause damage to the device or affect its performance.
The output capacitor value and type depend on the specific application requirements, such as output voltage, current, and ripple. A general rule of thumb is to use a capacitor with a value between 10uF to 100uF, and a type that has low ESR (Equivalent Series Resistance) and high ripple current capability. X5R or X7R ceramic capacitors are good options for most applications.
The LMV792MMX/NOPB is rated for operation up to 125°C, but it's essential to consider the device's thermal characteristics, such as junction temperature and thermal resistance, when designing for high-temperature applications. Ensure that the device is properly heat-sinked and that the operating conditions are within the recommended specifications.
LMV792MMX/NOPB datasheet
by Texas Instruments
