Part Number: LMQ61460EVM Tool/software: Hi
Can we use LMQ61460EVM-400K as a IBB to generate negative output?
I make the setup to generate -5V output from 24V input also added protection diode at output, but not getting proper waveform
Regards…
Hi,
What is your application condition (VIN,VOUT,IOUT,FSW,etc.)? Are you using the default BOM components on the LMQ61460EVM?
When measuring the output ripple, are you using proper techniques (pig-tail method or tip and barrel method) to accurately…
Part Number: LMQ61460EVM Other Parts Discussed in Thread: LMQ61460-Q1 Hi team,
The description of LMQ61460EVM-400k says " The LMQ61460EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMQ61460-Q1 synchronous step…
Part Number: LMQ61460EVM In the EVM's user guide, there is a pi filter design below. we're wondering to know how to pick the R/C values and design the pi filter to pass the CISPR EMI conditions. It would be good if you could share the calculation process…
Other Parts Discussed in Thread: LMQ61460 , LMQ61460EVM 부품 번호: LMQ61460
This is a circuit with an output voltage of 8.7V for a 12V input. The output voltage is not output properly.
The picture below shows the waveform of the output. It does not output…
Hi Niranjan,
The few ms (2-3ms) between difference between both rails are acceptable , also I checked rise timing with LMQ61460EVM-400K for 5+V and TPSM63603EVM for -5V, it looks nearly same.
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…
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…
Hi Tuan,
I would suggest you take the LMQ61460EVM and swap the components on the EVM with your own values to validate design operation.
This way while you are waiting for the next sample builds to implement the revision, you can evaluate the part…
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 LMQ61460EVMs to test and…
