Help me,poles and zero analysis in bipolar LDO IC

eetop99

In the present,I have confused with the problem.Generally,how many poles and zero in LDO IC with bipolar process? which is the dominant pole? and which part do each of them come from? Are they diffrent from with CMOS LDO?thanks very much! Below picture show the block of LDO

jcl70ca

interesting topic for begginers

liana

Q1错了~

tottistone9

bipolar?

topempty

怎么看不到图？

djjj

I agree that it seems the circuits will be more easy to understand if replace Q1 with a NPN.
Right, master?

冬天的瓜

看不到图啊

pipida

what are the differences between bjt and cmos? Are they necessary to be large to conduct same amount of currents? And what are the output resistances for bjt and cmos? I think the differences exist in the answers to these questions.

122013137

NB ，三级放大~

ADC916

thanks