Dear support team
I have question of LMR14030-Q1 behavior.
Is the spread spectrum function enable in pulse skip mode?
Is there any concern such as the current limit changing in the low dropout operation mode?
Regards
Tomohiro Nagasawa
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Dear support team
I have question of LMR14030-Q1 behavior.
Is the spread spectrum function enable in pulse skip mode?
Is there any concern such as the current limit changing in the low dropout operation mode?
Regards
Tomohiro Nagasawa
For this part , the part number LMR14030SSQDDARQ1 will has the Spread Spectrum function.
When the part operate in pulse skip-mode, the spread function will be disable. Even though the spread is disable, the EMI is also not very high because of the low frequency in pulse skip-mode.
For the low drop operation mode, the current limit will not be changed. in fact , in such operation mode, the current can't reach to the current limit and the high side also will be turn off after detecting the SW is always high in 5 or 10 cycles(Detail in DS 7.3.4)