A good PCB layout for the UCC27524ADGN involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and loops. TI provides a recommended layout in the application note SLUA623.
The input capacitor should be selected based on the input voltage ripple requirement, output current, and switching frequency. A general guideline is to choose a capacitor with a capacitance value of at least 10uF, a voltage rating of 1.5 to 2 times the input voltage, and a low ESR (Equivalent Series Resistance).
The maximum ambient temperature for the UCC27524ADGN is 85°C. However, the device can operate up to 125°C junction temperature. It's essential to ensure proper thermal design and heat sinking to maintain a safe operating temperature.
Yes, the UCC27524ADGN can be used in a synchronous buck converter configuration. However, it's essential to ensure that the low-side FET is properly driven and synchronized with the high-side FET to prevent shoot-through currents and ensure efficient operation.
The switching frequency of the UCC27524ADGN can be adjusted by changing the value of the RT resistor connected to the RT pin. A smaller RT resistor value increases the switching frequency, while a larger value decreases it.
UCC27524ADGN datasheet
by Texas Instruments
