A CMOS Low Noise, Chopper Stabilized Low-Dropout Regulator With Current-Mode Feedback Error Amplifier

Oh, Won‐Seok; Bakkaloglu, Bertan; Wang, C.; Hoon, Siew Kuok

doi:10.1109/tcsi.2008.923278

Cited by 42 publications

(2 citation statements)

References 14 publications

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“…PCA (programmable capacitor array) is also suffered from more die size and high cost [10]. Reference [11] employed the structure called super-source-follower that can decrease the buffer output impedance greatly without much tail current [12], but the problem is the negative feedback loop cannot be stable in all cases, especially when driving a capacitive load [13]. FVF (flipped voltage follower) is also a good way to enhance the transient response but more transistors and current will be consumed [14].…”

Section: Introductionmentioning

confidence: 99%

High voltage low quiescent current LDO with self-regulation impedance buffer

Tian

Chen

Wang

2023

Journal of Electrical Engineering

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To improve the whole characteristic of the LDO, a low quiescent current structure of high voltage LDO with self-regulation impedance buffer and bandgap amplifier is presented in this paper. With the bandgap amplifier proposed, the function of voltage reference and error amplifier can be achieved simultaneously, which can efficiently reduce the consumption. The load capacitor can be as small as 0.47µF by using the self-regulation impedance buffer and current buffer compensation scheme. The LDO has been implemented in a 0.18 µm process with die size 0.03 mm2 . Without the load, the consumption quiescent current of the LDO is 1 µA. Experimental result shows that the overshoot and undershoot of line transient response are less than 30 mV/V. The load regulation is about 0.1A, and line regulation is about 0.07 mV/V at no load condition.

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Section: Introductionmentioning

confidence: 99%

High voltage low quiescent current LDO with self-regulation impedance buffer

Tian

Chen

Wang

2023

Journal of Electrical Engineering

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“…In order to achieve a small ∆𝑉 𝑜 , the LDO needs to be designed with small 𝑇 𝑟 and/or large 𝐶 𝐿 , [9], [38], [76], [77]. However, these two solutions are arguably impractical for modern mobiles because the former typically relies on the large power dissipation of the LDO, and the later causes undesirable increase in device form factor [77], [78], [22], [21].…”

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confidence: 99%

Design and realization of low dropout voltage regulators in PMIC for portable applications

Li¹

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A switch‐mode boost DC–DC converter for IR‐drop compensation of charging cable

Moon

Yoo

2014

Circuit Theory & Apps

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SUMMARYA switch-mode boost DC-DC converter has been developed to compensate for the IR-drop because of the finite resistance of a charging cable. The boost ratio of the DC-DC converter is adaptively controlled by an IR-drop sensing circuit to provide the required voltage level to a battery charger regardless of the cable resistance. Implemented in a 0.18 μm BCDMOS process, the IR-drop compensating switch-mode boost DC-DC converter occupies 6.2 mm 2 active area and shows the 93.2% peak efficiency. The proposed IRdrop compensating boost converter can be applied to compensate for the IR-drop of any type of charging cables.

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A CMOS Low Noise, Chopper Stabilized Low-Dropout Regulator With Current-Mode Feedback Error Amplifier

Cited by 42 publications

References 14 publications

High voltage low quiescent current LDO with self-regulation impedance buffer

High voltage low quiescent current LDO with self-regulation impedance buffer

Design and realization of low dropout voltage regulators in PMIC for portable applications

A switch‐mode boost DC–DC converter for IR‐drop compensation of charging cable

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