arunkumarshanti
Newbie level 6
Hi,
I am designing a synchronous buck converter & the specs are as follows:
Vin = 1.8V
Vo = 0.5V
Io = 1mA
Fsw = 1Mhz
Vripple(p-p) = 500 micro volts
For this I need to design error amplifier. My understanding is that I need to design a two stage op-amp with input differential amplifier followed by a common source amplifier. I read multiple sources for designing a two stage opamp but I did not get the grip. I am confused how to choose the specifications like input swing, Bandwidth, gain, required output voltage from error amplifier. Please help me to design a error amplifier and a suitable compensation for my project. :-|
I am designing a synchronous buck converter & the specs are as follows:
Vin = 1.8V
Vo = 0.5V
Io = 1mA
Fsw = 1Mhz
Vripple(p-p) = 500 micro volts
For this I need to design error amplifier. My understanding is that I need to design a two stage op-amp with input differential amplifier followed by a common source amplifier. I read multiple sources for designing a two stage opamp but I did not get the grip. I am confused how to choose the specifications like input swing, Bandwidth, gain, required output voltage from error amplifier. Please help me to design a error amplifier and a suitable compensation for my project. :-|
