A low power bandgap voltage reference for low-dropout regulator

• Main Authors: Lee, Chu Liang, Mohd Sidek, Roslina, Rokhani, Fakhrul Zaman, Sulaiman, Nasri
• Format: Conference or Workshop Item
• Language: English
• Published: IEEE 2015
• Online Access: http://psasir.upm.edu.my/id/eprint/52667/1/A%20low%20power%20bandgap%20voltage%20reference%20for%20low-dropout%20regulator.pdf; http://psasir.upm.edu.my/id/eprint/52667/
• Institution: Universiti Putra Malaysia

A low power Bandgap Voltage Reference (BGR) is designed to supply a voltage reference for a low voltage Low-Dropout Regulator (LDO). This bandgap design consists of a bandgap core circuit, an output stage and a start-up circuit. The output of the bandgap adopted sub-1V voltage reference through the output stage circuit. The bandgap is simulated using 0.13 μm CMOS process. This BGR circuit provides voltage reference of 64mV± 1mV over-25°C to 120°C temperature range. The power supply of this BGR circuit is 1.20 V and the total current is 20 μA, thus resulting a low total power consumption of 24μW. The total layout area for this bandgap design is 66μm × 100μm.