Part Number: LM2830
I have an LM2830X 5V to 3.3V design. If the 5V is supplied from within our product, the 3.3V output has an overshoot to 3.6V before coming back down to regulate at 3.3V. If I use a different 5V source with faster ramp rate, the LM2830X…
EH,
The duty cycle for Vin = 3.3 V and Vout = 2.5 is approximately 75.8 %. The maximum duty cycle for LM2830XQMF is 86%. So you should have plenty of margin. Is Vin = 3.3 V you worst case condition?
Part Number: LMR10510 Other Parts Discussed in Thread: LM2830 Hi
What is the main differences of LMR10510 and L M2830. Upon checking their datasheet electrical parameters are the same. What is the advantages of the two? The only difference found in…
Peter,
meanwhile we solved the problem by using a different switcher. We now use a LM3674MF-1.2. Now we don't see any issues with the 1.2V rail. In between I tried a LM2830XQMFE, because this part has the same pinning like the LMR10510Y. But in the…
Hi Adam,
thanks for your reply. Please see my response below.
1. Which supply ICs are used to supply the 3.3V and 1.9V to the F28335?
Ans:
3.3V is Generated from LM2830 IC
1.9V is Generated from LM1086 IC
2. Are there any digital pins which…