A Robust Low-Voltage On-Chip LDO Voltage Regulator in 180 nm

Table 1

Salient design parameters.

Design parameters	Error amplifier		Bias circuit
Transistor sizing (units in microns unless otherwise specified)	𝑀1: 25/.5	𝑀7: 4/1	MN1 1/2	MP1 20/1
	𝑀2: 25/.5	𝑀8: 15/1	MN2 1/2	MP2 20/1
	𝑀3: 3.7/1	𝑀9: 15/1	MN3 1/2	MP3 20/1
	𝑀4: 3.7/1	𝑀10: 15/1	MN4 2/1	MP4 20/1
	𝑀5: 100/.5	𝑀11: 15/1	MN5 1/2	MP5 20/1
	𝑀6: 4/1		MN6 1/2	MP6 20/1
			MN7 1/8.75	MP7 3.1/1
Amplifier gain	70 dB
GBW	200 KHz