Part Number: LM5116
1 Can I fixed-frequency LM5116MH when no load?
2. In the specification, the maximum voltage of SW to GND is 100V, and the measured peak is 120V. There is no abnormality. If you can only admit 100V, how do you get 100V input? The bottom tube can't oscillate at all, can it?
3. Input: 30-60v, output: 12.5v, 0-5.5a; According to the specification, the inductance L should be 15uH. Application: with 15uH no-load, frequency hopping is serious; with 6.8uh no-load, frequency hopping is small, but frequency jitter (size cycle) occurs near 2A?