Name
Title | ||
|---|---|---|
PSR-enhanced low-dropout regulator using feedforward supply noise rejection technique |
Abstract | ||
|---|---|---|
A low-dropout regulator (LDO) with a wide-bandwidth feedforward supply noise rejection technique to maximize power supply rejection (PSR) at middle-to-high frequency is presented in this paper. The concept is based on a bandpass filter design without using a large voltage-gain amplifier in the feedforward path. For the PSR filter design, the total on-chip capacitance is about 36pF by utilizing an nwell gate capacitor with high capacity in the process. This circuit has been analyzed and verified in a 0.5μm CMOS process. From the experimental results, the proposed LDO can operate with a dropout voltage of 150mV at maximum load of 25mA. The quiescent current is only 19μA at light load. It achieves a PSR better than -45dB up to 10MHz with a 4μF output capacitor. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1109/ASICON.2017.8252486 | 2017 IEEE 12th International Conference on ASIC (ASICON) |
Keywords | Field | DocType |
DC-DC converters,loop bandwidth,bandpass filter,feedforward ripple cancellation,low-dropout regulator,power-supply rejection | Capacitor,Capacitance,Band-pass filter,Computer science,Electronic engineering,Low-dropout regulator,Filter design,Dropout voltage,Amplifier,Feed forward | Conference |
ISSN | ISBN | Citations |
2162-7541 | 978-1-5090-6626-1 | 0 |
PageRank | References | Authors |
0.34 | 0 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xin Ming | 1 | 3 | 1.75 |
| xuan zhang | 2 | 93 | 25.30 |
| Di Gao | 3 | 3 | 1.75 |
| Jia-Hao Zhang | 4 | 0 | 0.34 |
| Bo Zhang | 5 | 17 | 6.30 |