Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
The selection of input and output capacitors depends on the specific application requirements. In general, low-ESR capacitors with a high ripple current rating are recommended. The datasheet provides some guidance on capacitor selection, but it's also recommended to consult the capacitor manufacturer's datasheet and application notes.
The LM26420Q0XMH/NOPB is rated for operation up to 125°C, but the maximum ambient temperature for reliable operation depends on the specific application and the thermal design of the system. It's recommended to follow the thermal design guidelines in the datasheet and to ensure that the junction temperature of the IC does not exceed 150°C.
To ensure EMC compliance, it's recommended to follow the guidelines in the datasheet and to consult the relevant EMC standards and regulations. This may include using shielding, filtering, and other techniques to minimize electromagnetic interference (EMI).
The recommended input voltage range for optimal performance is 3.5V to 5.5V, but the IC can operate with input voltages as low as 2.7V. However, the output voltage regulation and efficiency may be affected at lower input voltages.
LM26420Q0XMH/NOPB datasheet
by Texas Instruments
