A good PCB layout for the LT6604 involves keeping the input and output capacitors close to the device, using short and wide traces for the power lines, and separating the analog and digital grounds. A 4-layer PCB with a solid ground plane is recommended.
To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the output capacitor has a low ESR and is properly decoupled from the output voltage. Additionally, avoid using capacitors with high ESL values.
The maximum input voltage that the LT6604 can handle is 15V, but it's recommended to keep the input voltage below 12V for optimal performance and reliability.
The LT6604 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
To troubleshoot issues with the LT6604, start by checking the input and output voltages, and the output current. Verify that the component values and PCB layout match the recommended values and layout. Use an oscilloscope to check for oscillations or noise on the output voltage. Consult the datasheet and application notes for more troubleshooting tips.
LT6604IUFF-10#PBF datasheet
by Linear Technology
