LMR36510: Part number clarification

Sivakrishna Jakkula

Prodigy 10 points

Part Number: LMR36510

over 1 year ago

0 Elena Gao over 1 year ago

TI__Genius 13735 points

hi,

yes and usually the F stands for FPWM.

Elena

0 Sivakrishna Jakkula over 1 year ago in reply to Elena Gao

Prodigy 10 points

what is the difference between non-FPWM and FPWM device

0 Elena Gao over 1 year ago in reply to Sivakrishna Jakkula

TI__Genius 13735 points

NO-FPWM is called PFM mode, it will get higher light load efficiency, and the inductor current is different, At heavy loads, the device operates in PWM at a constant switching frequency. At light loads, FPWM will keep the frequency, but PFM will operate in diode emulation, allowing DCM. This reduces the input supply current and keeps efficiency high.

you could search in DS for mode operation for more detail ,and view the efficiency curve to help understand.

Elena

Power management

Power management forum

LMR36510: Part number clarification