TLV62080EVM-756 bode plot in 100% mode

Kuo Nowal

Expert 2315 points

Other Parts Discussed in Thread: TLV62080, TLV62080EVM-756

Hi sir,

May I know TLV62080 phase margin at 100% duty result show as FIG is right? because no cross frequency.

test condition :

Vin 3.3V, Vout 3.28V / 0.2A

TLV62080EVM-756

over 7 years ago

0 Chris Glaser over 7 years ago

TI__Guru*** 142880 points

A bode plot is not valid in 100% mode. In this mode, the IC is not controlling the duty cycle to regulate the output voltage. It is operating open loop to try to bring the output voltage into regulation, which it cannot do.

Power management

Power management forum

TLV62080EVM-756 bode plot in 100% mode