Texas Instruments recommends a compact layout with short traces, and placing the device close to the power supply bypass capacitors. Additionally, separating the analog and digital grounds, and using a solid ground plane can help reduce noise and improve performance.
The output capacitor value depends on the output voltage, output current, and desired transient response. A general guideline is to use a capacitor with a value between 10uF to 22uF, with a low ESR (Equivalent Series Resistance) and a voltage rating that exceeds the output voltage. Consult the datasheet and application notes for more specific guidance.
The TL3472CDE4 has an absolute maximum input voltage rating of 18V. However, the recommended operating input voltage range is 4.5V to 15V. Exceeding the absolute maximum rating can damage the device.
The TL3472CDE4 has an operating junction temperature range of -40°C to 125°C. However, the device's performance and reliability may degrade at high temperatures. Consult the datasheet and application notes for thermal management guidelines and derating information.
To ensure stability, follow the recommended layout and placement guidelines, use a suitable output capacitor, and ensure the input voltage is within the recommended range. Additionally, adding a small ceramic capacitor (e.g., 10nF) between the VIN and GND pins can help improve stability.
TL3472CDE4 datasheet
by Texas Instruments
