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 using a solid ground plane, minimizing trace lengths, and using bypass capacitors to reduce noise and oscillations.
The choice of input and output capacitors depends on the specific application and operating conditions. In general, low-ESR capacitors with a high ripple current rating are recommended. The datasheet provides some guidance on capacitor selection, but it's also important to consider factors such as voltage rating, temperature range, and physical size.
The LMV821 is rated for operation from -40°C to 125°C, but the maximum operating temperature range may be limited by the specific application and operating conditions. It's important to consider factors such as power dissipation, thermal resistance, and reliability when determining the maximum operating temperature range.
To ensure stability and prevent oscillations, it's important to follow proper PCB design and layout guidelines, use bypass capacitors to reduce noise and oscillations, and ensure that the input and output capacitors are properly selected and sized. Additionally, the datasheet provides some guidance on stability and oscillation prevention.
The typical startup time for the LMV821 is around 100-200 μs, but this can vary depending on the specific application and operating conditions. It's important to consider the startup time when designing the power-up sequence and ensuring that the output voltage is stable before enabling the load.
LMV821DCKT datasheet
by Texas Instruments
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