A good PCB layout for the REF3130AQDBZRQ1 involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog layer to minimize noise and crosstalk.
To prevent oscillations and noise, it's essential to bypass the REF3130AQDBZRQ1 with a 10uF ceramic capacitor between the VIN pin and GND, and a 100nF ceramic capacitor between the VOUT pin and GND. Additionally, decouple the device with a 10uF tantalum capacitor between the VIN pin and GND.
The recommended input voltage range for the REF3130AQDBZRQ1 is 4.5V to 18V. Operating the device within this range ensures the output voltage accuracy is maintained within ±0.5% of the nominal value. Operating outside this range may affect the output voltage accuracy and device performance.
The REF3130AQDBZRQ1 has built-in protection against input voltage transients and brownout conditions. The device can withstand input voltage transients up to 20V for 100ms without affecting the output voltage. In the event of a brownout, the device will automatically recover once the input voltage returns to a stable state.
The REF3130AQDBZRQ1 has a thermal derating of 1.5mA/°C above 25°C. This means that the device's output current capability decreases as the temperature increases. It's essential to ensure proper thermal management and heat sinking to maintain the device's performance and prevent overheating.
REF3130AQDBZRQ1 datasheet
by Texas Instruments
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