A 4-layer PCB with a solid ground plane and thermal vias under the device is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
To ensure stability, use a minimum output capacitance of 10uF, and ensure that the output capacitor's ESR is less than 1 ohm. Additionally, use a low-ESR input capacitor and keep the input and output capacitors close to the device.
The maximum input voltage that can be applied to the LMV7219M7X is 5.5V. Exceeding this voltage may cause damage to the device.
The output voltage ripple and noise can be calculated using the formula: ΔVout = (Iout * Rload) / (fsw * Cout), where Iout is the output current, Rload is the load resistance, fsw is the switching frequency, and Cout is the output capacitance.
A 10uF to 22uF X5R or X7R ceramic capacitor is recommended for the input capacitor. This helps to filter out high-frequency noise and ensure stable operation.
LMV7219M7X datasheet
by Texas Instruments
