A capacitorless low-dropout regulator with enhanced slew rate and 4.5- $$\upmu \hbox {A}$$ μ A quiescent current

Yeo, Jaejin; Javed, Khurram; Lee, Jae‐Seong; Roh, Jeongjin; Park, Jae-Do

doi:10.1007/s10470-016-0869-z

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…However, designing an EA with these high specifications is difficult. The EA was previously applied to achieve low-quiescent current without degrading the transient response of linear low-dropout regulator in [7]. The high loop gain of the proposed EA also helps in improving the power supply rejection ratio (PSRR) [6].…”

Section: Proposed Architecturementioning

confidence: 99%

“…The high loop gain of the proposed EA also helps in improving the power supply rejection ratio (PSRR) [6]. The EA was previously applied to achieve low-quiescent current without degrading the transient response of linear low-dropout regulator in [7]. To our knowledge, this scheme has not been presented for switching converters before.…”

Section: Proposed Architecturementioning

confidence: 99%

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Fast‐transient DC‐DC converter using a high‐performance error amplifier with a rapid output‐voltage control technique

Javed

Yeo

Lee

et al. 2017

Circuit Theory & Apps

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This letter presents a method for improving the transient response of DC-DC converters. The proposed technique replaces the conventional error amplifier with a combination of two different amplifiers to achieve a high loop gain and high slew rate. In addition, a rapid output-voltage control circuit is employed to further reduce the recovery time. The proposed technique was applied to a four-phase buck converter, and the chip was implemented using a 0.18-μm CMOS process. The switching frequency of each phase was set at 2 MHz. Using a supply voltage of 2.7-5.5 V and an output voltage of 0.6-1.5 V, the regulator provided up to 2-A load current with maximum measured recovery time of only 6.2 and 6.5 μs for increasing and decreasing load current, respectively.

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Section: Proposed Architecturementioning

confidence: 99%

Section: Proposed Architecturementioning

confidence: 99%