A good PCB layout for the MAX17435ETG+ involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces to reduce noise and EMI. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure the stability of the output voltage, it is essential to choose the correct output capacitor value and type. A minimum capacitance of 10uF with an ESR of 1ohm or less is recommended. Additionally, the output capacitor should be placed close to the IC to minimize the loop area and reduce noise.
The MAX17435ETG+ can handle a maximum input voltage of 24V. However, it is recommended to operate the device within the specified input voltage range of 4.5V to 18V for optimal performance and reliability.
The output voltage of the MAX17435ETG+ can be programmed using an external resistor divider network connected to the FB pin. The output voltage can be calculated using the formula: VOUT = 0.8V x (R1/R2 + 1), where R1 and R2 are the resistors in the divider network.
The thermal shutdown temperature of the MAX17435ETG+ is 150°C. The device will shut down when the junction temperature exceeds this value to prevent damage.
MAX17435ETG+ datasheet
by Maxim Integrated Products
