A Fast Low Dropout Regulator with High Slew Rate and Large Unity-Gain Bandwidth

2013 ◽  
Vol 13 (4) ◽  
pp. 263-271 ◽  
Author(s):  
Younghun Ko ◽  
Yeongshin Jang ◽  
Sok-Kyun Han ◽  
Sang-Gug Lee
Keyword(s):  
Slew Rate ◽  
Gain Bandwidth ◽  
Unity Gain ◽  
Low Dropout Regulator

A LOW POWER CURRENT RECYCLING CONSTANT-gm RAIL-TO-RAIL OTA

2014 ◽  
Vol 23 (02) ◽  
pp. 1450022
Author(s):  
XIAO ZHAO ◽  
HUAJUN FANG ◽  
JUN XU
Keyword(s):  
Low Power ◽  
Bias Current ◽  
Cmos Process ◽  
Slew Rate ◽  
Gain Bandwidth ◽  
Design Specifications ◽  
Rail To Rail ◽  
Dc Gain ◽  
Unity Gain ◽  
Simulation Results

A low power current recycling constant-gm rail-to-rail (RtR) OTA is presented. The proposed amplifier has the benefit of delivering the same performance while consuming half the power compared to the conventional RtR amplifier. This is achieved by recycling the bias current of idle devices, which results in an enhanced transconductance, gain and slew rate. The proposed amplifier was implemented in CSMC standard 0.18 um CMOS process. Simulation results show that the proposed amplifier achieves 10.2 MHz unity-gain bandwidth, 59.4 dB DC gain, 4.8 V/us slew rate and less than 8% deviation in transconductance, but the power consumption reduced by 50% compared to the conventional RtR amplifier with the same design specifications.

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

2016 ◽  
Vol 90 (1) ◽  
pp. 227-235 ◽  
Author(s):  
Jaejin Yeo ◽  
Khurram Javed ◽  
Jaeseong Lee ◽  
Jeongjin Roh ◽  
Jae-Do Park
Keyword(s):  
Slew Rate ◽  
Quiescent Current ◽  
Low Dropout Regulator
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