PSG
Junior Member level 1
Hi,
I'm trying to design a bandgap with a pretty high PSRR at high frequency (for a switching regulator which frequency can go up to 1Mhz). I've tried a pre-regulation, I've tried voltage subtraction, but the best I get is 30dB at 1MHz.
Any ideas on what architectures would work best for this design? Also I'm limited to 10uA of currents. Is this feasible?
Thanks.
I'm trying to design a bandgap with a pretty high PSRR at high frequency (for a switching regulator which frequency can go up to 1Mhz). I've tried a pre-regulation, I've tried voltage subtraction, but the best I get is 30dB at 1MHz.
Any ideas on what architectures would work best for this design? Also I'm limited to 10uA of currents. Is this feasible?
Thanks.