Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency PCB design guidelines, such as keeping the input and output traces short and away from each other, using a solid ground plane, and minimizing vias and thermal reliefs.
To ensure stability, follow the datasheet's guidelines for component selection, such as choosing the correct output capacitor and resistor values. Additionally, make sure to decouple the input and output pins properly, and consider adding a small capacitor (e.g., 10nF) between the VIN and GND pins to improve stability.
The LM5072MH-50/NOPB has an operating junction temperature range of -40°C to 150°C, but the maximum ambient temperature range depends on the specific application and thermal design. As a general rule, the ambient temperature should be kept below 85°C to ensure reliable operation.
The LM5072MH-50/NOPB is a commercial-grade device, but Texas Instruments offers other versions (e.g., LM5072MH-50Q1/NOPB) that are qualified for automotive and high-reliability applications. These versions have additional testing and qualification to ensure they meet specific industry standards.
The power dissipation of the LM5072MH-50/NOPB can be calculated using the equation: Pd = (VIN x IIN) + (VOUT x IOUT) + (VIN x Iq), where IIN is the input current, IOUT is the output current, and Iq is the quiescent current. The datasheet provides more information on how to calculate these values.
LM5072MH-50/NOPB datasheet
by Texas Instruments
