The 5 V input and 3.2 V output help, but pin 4 IN and pin 9 OUT alone probably aren’t enough to identify the exact part. If you can post a close-up of the marking on the component, that would be the best clue. A photo of the surrounding circuit would also help, especially the pins connected to resistors or feedback.
The 5 V input and 3.2 V output help, but pin 4 IN and pin 9 OUT alone probably aren’t enough to identify the exact part. If you can post a close-up of the marking on the component, that would be the best clue. A photo of the surrounding circuit would also help, especially the pins connected to resistors or feedback.
Thank you for trying to help. Looking more closely, the output to the external MOSFET is on pin 7 and the FB is on pin 9 (2.5V). A photo of the circuit is attached. The brown wires are from the coil that I removed to visualize the entire circuit. And the logo really is indecipherable.