A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good airflow around the device. The datasheet provides some guidelines, but a more detailed application note from TI provides additional guidance.
To ensure a stable and regulated output voltage, make sure to follow the recommended input and output capacitor values, and ensure the input voltage is within the recommended range. Additionally, the output voltage can be adjusted using the feedback resistors, and the device has built-in over-voltage protection.
The maximum input voltage that can be applied to the LMZ14203HTZX/NOPB is 42V, but it's recommended to operate the device within the recommended input voltage range of 6.5V to 36V for optimal performance and reliability.
The LMZ14203HTZX/NOPB has built-in overcurrent protection and short-circuit protection. However, it's still recommended to add external protection components such as fuses or current-limiting resistors to prevent damage to the device and the system.
The typical startup time for the LMZ14203HTZX/NOPB is around 10ms, but this can vary depending on the input voltage, output voltage, and other system parameters.
LMZ14203HTZX/NOPB datasheet
by Texas Instruments
