Can I have switching frequency over load ranged from no load to 400mA. Especially, I need to know from what load the switching frequency can be in audible range.
Can lowering output cap down to 4.7uF or even lower will lower the load point to get to audible switching frequency?
Thanks,
Hi Edward,
Can you try going to TI Webench Power Desginer https://webench.ti.com/power-designer/switching-regulator
1. There you can enter the device version you are interested in. After entering click 'view design TPS628436'.
2. Click 'change' to customize operating conditions on the top left of the page
3. Change BOM by clicking the passives in the schematic and choosing an alternative
4. All performance parameters including frequency are displayed at the bottom of the page.
Best regards,
Varun
