LM3489: Pmos Controller recommendation

Tool/software:

Hi team,

Could you help recommend suitable Pmos Controller?

PMOS controller
topology：Buck
Vin：4.5-35V
I：1A
Operating temp：125℃
Iq max：400uA
Duty cycle max：100%
Other：enable/shutdown
minimum ON time in normal operation：100ns

need pre-bias startup feature，Vout< 500us

Thanks

Lillian