Cypress provides a recommended PCB layout guide in their application note AN2141, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and reliability.
The VIC068A-BC has a resistive divider network that sets the output voltage. To configure the output voltage, you need to calculate the required resistor values using the formula provided in the datasheet and then select the appropriate resistors. Cypress also provides a voltage calculator tool to simplify the process.
The VIC068A-BC has an absolute maximum input voltage rating of 6.5V. Exceeding this voltage can damage the device. However, the recommended maximum input voltage is 5.5V to ensure reliable operation and to prevent overheating.
To ensure stability, follow the recommended PCB layout guidelines, use a sufficient output capacitor (at least 10uF), and add a small ceramic capacitor (around 100nF) between the VIN and GND pins to filter out noise. Additionally, make sure the input voltage is within the recommended range and the device is operated within its specified temperature range.
The VIC068A-BC has an operating temperature range of -40°C to 125°C. However, the device's performance and reliability may degrade at higher temperatures. For high-temperature applications, consider using a heat sink or a thermal interface material to reduce the junction temperature. Additionally, consult with Cypress Semiconductor for specific guidance on high-temperature operation.
VIC068A-BC datasheet
by Cypress Semiconductor
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