LMZ23605TZE　Questions of the wave pattern and the FB terminal

shoji makino

Prodigy 60 points

Device:LMZ23605TZE

①The Vt of the wave pattern the attached No.7 or normal Pattern?

②If No problem wave pattern,please tell me the Variation range.(Example: VOUT±xx%)

③Ripple that occurs when measuring the FB terminal? Please tell me the reason.

YMM測定波形(電子負荷)_20150916 (1).pdf

over 8 years ago

0 Frank De Stasi over 8 years ago

TI__Guru 57555 points

I will pass this to the Apps engineer.

0 Marc Davis-Marsh over 8 years ago in reply to Frank De Stasi

TI__Genius 10095 points

Hi,
I took a look at the waveforms and it appears that there is some coupling from switching noise onto the waveform.
How are you probing the FB pin, and how is the probe grounded. If the loop of the probe and the ground lead are near the package then it is possible to pick up switch noise in the measurement.
Marc

Power management

Power management forum

LMZ23605TZE　Questions of the wave pattern and the FB terminal

Power management

Power management forum

LMZ23605TZE Questions of the wave pattern and the FB terminal

LMZ23605TZE　Questions of the wave pattern and the FB terminal