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Jimmy Hua
2 months ago
Power management
Power management forum
RE: LMQ61460EVM: LMQ61460EVM ripples
Hi, I'll close this thread for now since I haven't heard back from you for some time so I assume the issue was resolved on your end. Please feel free to reply back to this thread to reopen for further troubleshooting. Regards, Jimmy
Jimmy Hua
9 days ago
Power management
Power management forum
RE: LMQ61460: Excessive ripple and dropout spikes with load current of 3.5A or greater.
Hi Jim, Looks like you are operating at 24Vin|5Vout|440kHz. Based on the WEBENCH simulation schematic, this follows the TI datasheet recommendation and 3 x 47uF should be enough to keep the output ripple relatively low. Can you provide your PCB...
Jimmy Hua
3 months ago
Power management
Power management forum
RE: LMQ61460: Inductor saturation current
Hi Danilo, Are you perhaps referring to Table 9-5 ? That 1.5uH MAPI inductor is used as an input filter to the LMQ61460. I don't expect the input current to get anywhere close to 6A for this to be of concern. The recommended output power inductor...
Jimmy Hua
2 months ago
Power management
Power management forum
RE: WEBENCH® Tools/LMQ61460-Q1: Minimum output voltage
Hi Darren, I've contacted the internal team and previous apps engineer. As stated previously 1V output may be possible but will require significantly larger output capacitance. I'd suggest giving the customer a one of the
LMQ61460EVM
s to test...
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