ABLIC recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2-3 thermal vias should be used to connect the thermal pad to the copper area.
To ensure stable output voltage during startup, ABLIC recommends adding a 1-10uF ceramic capacitor between the VIN pin and GND, and a 1-10uF ceramic capacitor between the VOUT pin and GND. This helps to filter out noise and reduce voltage droop during startup.
According to ABLIC, the maximum allowed input voltage ripple is 200mVp-p. Exceeding this value may affect the regulator's performance and stability.
The S-8425AAGFT-TB-U is rated for operation up to 125°C. However, ABLIC recommends derating the output current and voltage to ensure reliable operation in high-temperature environments. Consult the datasheet for specific derating guidelines.
To calculate the power dissipation of the S-8425AAGFT-TB-U, use the following formula: Pd = (VIN - VOUT) x IOUT. Where Pd is the power dissipation, VIN is the input voltage, VOUT is the output voltage, and IOUT is the output current.
S-8425AAGFT-TB-U datasheet
by ABLIC Inc.
