Hi Ritchie,
thank you for using the E2E forum.
For more accurate review can you please provide some more details:
- input voltage range
- Inductor parameter: DCR, Saturation Current
By the way: another great tool is the Quickstart Calculator…
Hello Francesco,
You need to make sure that the converter is stable in all input voltage conditions. If it gets unstable when entering boost mode, it is possible that the compensation does not fit this condition. Please use the quickstart calculator…
Hi,
Is your posted picture related to the subject of this thread? I am afraid it belongs to a different thread.
Regarding the Cslope, could you please refer to the design calculator for a recommendation?
Thanks,
Youhao
Hello Diana,
What is the minimum input voltage that you want to support with this design? At the moment the converter starts at 4.7V.
You need to update the compensation to fit your requirements. At the moment, the converter is unstable for voltages…
Hello Sheng,
LM5176 is the predecessor of LM5175.
LM5175 is in general able to support almost the same current as LM5176, it has a lower current capability in the buck-boost mode. Webench should support this, I will request an update.
Please use…
Hello Francesco,
I think it is most important that the converter operates stable at no load first before we go on with checking what happens during short circuit. Would you please go through the quickstart calculator with your actual components? When…
Hello Davide,
Please send a measurement of your input and output voltages when the noise happens. If you could measure the inductor current in addition, this would be good.
Often audible noise is caused either by the inductor or ceramic capacitors…
Part Number: LM5175 Other Parts Discussed in Thread: LM5176 , Hi,
I'm designing DC charger using LM5175 IC, specs:
Vin: 10-16V
Vout: 14V
Switching Freq: 256k Hz
We encounter an issue below
When the DC charger start-up in boost mode it will…
Hello Cooper,
On the schematic I am able to identify the input voltage range and the output voltage, but for an analysis of the circuit, I need as well at least the maximum output current, please tell me.
On the other hand, you can do a first analysis…
