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http://localhost:8080/xmlui/handle/123456789/2345| Title: | 250mA ultra low drop out regulator with high slew rate double recycling folded cascode error amplifier |
| Authors: | Patri, Sreehari Rao Alapati, Suresh Chowdary, Surendra Prasad, Krishna |
| Issue Date: | 2014 |
| Publisher: | 18th International Symposium on VLSI Design and Test, VDAT 2014 |
| Citation: | 10.1109/ISVDAT.2014.6881067 |
| Abstract: | This paper presents a modified folded cascode error amplifier of low dropout (LDO) regulator and a compensation scheme to improve the transient response. The proposed error amplifier enhances its transconductance, gain, and slew rate by recycling the shunt current sources of conventional folded cascode amplifier without increasing area or power consumption. The design is implemented in a standard UMC 0.18μm CMOS process. The LDO regulator consumes a quiescent current of 34µAonly. Simulation results show that the overshoot/undershoot in the output voltage under the extreme load transients are 177.7mV/139mV for load current range of 0.5mA to 250mA with an output capacitor of 1pF. The LDO presented is useful for chip level power management suitable for SoC applications |
| Description: | NITW |
| URI: | http://localhost:8080/xmlui/handle/123456789/2345 |
| Appears in Collections: | Electrical Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 250mA_ultra_low_drop_out_regulator_with_high_slew_rate_double_recycling_folded_cascode_error_amplifier.pdf | 2.28 MB | Adobe PDF | View/Open |
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