STMicroelectronics provides a recommended PCB layout in the application note AN4779, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The ST2042BDR can be configured for different voltage ranges by adjusting the external resistors R1 and R2, which set the output voltage. The datasheet provides a formula to calculate the resistor values based on the desired output voltage. Additionally, STMicroelectronics offers a voltage calculator tool to simplify the process.
The maximum output current capability of the ST2042BDR is 2A, but it's recommended to derate the output current based on the ambient temperature and PCB thermal design to ensure reliable operation. The datasheet provides a thermal derating curve to help determine the maximum output current for a given temperature range.
To ensure the ST2042BDR meets EMC requirements, follow the recommended PCB layout and component placement guidelines, use a suitable input filter, and add shielding or a metal can to the device if necessary. STMicroelectronics also provides EMC-related application notes and guidelines to help with compliance.
The ST2042BDR has a high power density, so thermal management is crucial. Ensure good airflow, use a heat sink if necessary, and follow the recommended PCB layout and thermal design guidelines. The datasheet provides thermal resistance and junction temperature ratings to help with thermal design.
ST2042BDR datasheet
by STMicroelectronics
