Part Number: LMR23630-Q1 Hello TI,
We enable our LMR23630-Q1 using the voltage from 4 other signals on the board. These signals are 3V or 1.65V (drop from 3.3V and 1.8V due to small signal diodes). In the absence of these signals there is a 220k Ohm resistor…
Part Number: LMR23630-Q1 Other Parts Discussed in Thread: LMR23630 Hello TI,
we are developing a telematics device. In order to save space, I was wondering if we could place the LMR23630-Q1 and the related external components on the BOTTOM layer instead…
Part Number: LMR23630-Q1 Hi team.
I did simulated LMR23630AFDDA in WEBENCH.
However, the Rfbt value differs from the recommended value in the datasheet.(Please refer to the below captures.)
Is it ok to use with simulation results?
Part Number: LMR23630-Q1 Our customer consider to use LMR23630-Q1 for following inverting circuit
VIN:5V or 10V
Vout:-17V
Iout:200mA
external Fsync:460kHz-480kHz
In this case please let us know what external external circuit is needed at SYNC pin.
…
Part Number: LMR23630-Q1 Hello,
Do you think a boot resistor, which is a small register in series to CBOOT, is effective to suppress EMI for this device?
The concern here is a too large boot register can confuse the control of the regulator IC.
Thank…
Part Number: LMR23630-Q1 Hello,
NC pin (WSON #11) is specified as "Leave this pin floating" in the datasheet, but a customer wants it connected to GND. Can NC pin be connected to GND?
Thanks.
Regards,
Oguri (TIJ automotive FAE)
Part Number: LMR23630-Q1 Hello,
CVCC, bypass cap for VCC, is somehow recommended to be with voltage rating of 16V or higher, even though the voltage at VCC is 4.1V.
Why it is not 10V? Any reason behind?
Thank you.
Regards,
Oguri (TIJ automotive FAE…
Part Number: LMR23630-Q1 My customer would like to apply the LMR23630-Q1 and modify only the Rfbt value to change the output.
Vin : 25V / Vout : 5V or 3.3V(Modify the Rfbt) / Iout : 3A
Cout and Lout proposed calculating the minimum value in the datasheet…
Hi John,
Yes, the slow VIN ramp is very suspicious to me. Also your signals look a lot cleaner now. I'm now suspicious of the input circuit.
Do you get the same results if you connect the power directly to the VIN net on LMR23610/LMR23630 in your…
Part Number: LMR23630-Q1 Dear ,
My customer use LMR23630-q1, they encounter a problem. When there is no load,the output current is 200mA which made the devie become hot. Here is the SCH.
And we test the sw wave. Is there any problem?