On-chip voltage regulator with improved transient response

2005 ◽  
Author(s):  
A. Maity ◽  
R.G. Raghavendra ◽  
P. Mandal
Keyword(s):  
Transient Response ◽  
Voltage Regulator ◽  
On Chip

scholarly journals Full On-chip low dropout voltage regulator with an enhanced transient response for low power systems

2019 ◽  
Vol 9 (6) ◽  
pp. 4637 ◽  
Author(s):  
Hatim Ameziane ◽  
Kamal Zared ◽  
Hicham Akhamal ◽  
Hassan Qjidaa
Keyword(s):  
Power Systems ◽  
Transient Response ◽  
System Integration ◽  
Cmos Technology ◽  
Voltage Regulator ◽  
Fast Transient Response ◽  
Ground Current ◽  
Load Regulation ◽  
On Chip ◽  
Fast Settling

<span>A full on chip low Dropout Voltage Regulator (LDO) with fast transient response and small capacitor compensation circuit is proposed. The novel technique is implemented to detect the variation voltage at the output of LDO and enable the proposed fast detector amplifier (FDA) to improve load transient response of 50mA load step. The large external capacitor used in Conventional LDO Regulators is removed allowing for greater power system integration for system-on-chip (SoC) applications. The 1.6-V Full On-Chip LDO voltage regulator with a power supply of 1.8 V was designed and simulated in the 0.18µm CMOS technology, consuming only 14 µA of ground current with a fast settling-time LNR(Line Regulation) and LOR(Load regulation) of 928ns and 883ns respectively while the rise and fall times in LNR and LOR is 500ns.</span>

scholarly journals TRANSIENT RESPONSE OF A DISTRIBUTED RLC INTERCONNECT BASED ON DIRECT POLE EXTRACTION

2009 ◽  
Vol 18 (07) ◽  
pp. 1263-1285 ◽  
Author(s):  
GUOQING CHEN ◽  
EBY G. FRIEDMAN
Keyword(s):  
Closed Form ◽  
Transient Response ◽  
Transmission Lines ◽  
Average Error ◽  
Proposed Model ◽  
Newton Raphson ◽  
On Chip ◽  
Interconnect Systems ◽  
Interconnect System ◽  
Raphson Method

With higher operating frequencies, transmission lines are required to model global on-chip interconnects. In this paper, an accurate and efficient solution for the transient response at the far end of a transmission line based on a direct pole extraction of the system is proposed. Closed form expressions of the poles are developed for two special interconnect systems: an RC interconnect and an RLC interconnect with zero driver resistance. By performing a system conversion, the poles of an interconnect system with general circuit parameters are solved. The Newton–Raphson method is used to further improve the accuracy of the poles. Based on these poles, closed form expressions for the step and ramp response are determined. Higher accuracy can be obtained with additional pairs of poles. The computational complexity of the model is proportional to the number of pole pairs. With two pairs of poles, the average error of the 50% delay is 1% as compared with Spectre simulations. With ten pairs of poles, the average error of the 10%-to-90% rise time and the overshoots is 2% and 1.9%, respectively. Frequency dependent effects are also successfully included in the proposed method and excellent match is observed between the proposed model and Spectre simulations.

Autotuning of Integrated Inductive Voltage Regulator Using On-Chip Delay Sensor to Tolerate Process and Passive Variations

2019 ◽  
Vol 27 (8) ◽  
pp. 1768-1778 ◽  
Author(s):  
Venkata Chaitanya Krishna Chekuri ◽  
Monodeep Kar ◽  
Arvind Singh ◽  
Saibal Mukhopadhyay
Keyword(s):  
Voltage Regulator ◽  
On Chip
Sign in / Sign up

Export Citation Format

Share Document