Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the SRC4190IDBR near the power supply and away from high-frequency signals. A good layout practice is to keep the input and output traces short and separate, and to use a common ground plane for the input and output stages.
To optimize the SRC4190IDBR for low noise and high PSRR, use a low-ESR capacitor for the input capacitor, keep the input voltage as close to the recommended range as possible, and use a high-quality, low-noise power supply. Additionally, ensure good PCB layout practices, such as separating analog and digital grounds, and using a solid ground plane.
The SRC4190IDBR can handle input voltages up to 18V, but it's recommended to operate within the recommended input voltage range of 4.5V to 15V for optimal performance and reliability.
To ensure stability, follow the recommended component values and PCB layout guidelines, and ensure that the input and output capacitors are of high quality and have low ESR. Additionally, avoid using long input and output traces, and keep the feedback loop as short as possible.
The SRC4190IDBR can deliver up to 2A of output current, but it's recommended to operate within the recommended output current range of 1A to ensure optimal performance and reliability.
SRC4190IDBR datasheet
by Texas Instruments
