0% Complete
صفحه اصلی
/
پنجمین کنفرانس بین المللی میکروالکترونیک ایران
Double-OTA External Capless Low-power LDO Regulator with Enhanced PSR and Transient Response
نویسندگان :
Mohammad Ahmadi
1
Emad Ebrahimi
2
1- IC Design Research Lab, Electrical Engineering Department, Shahrood University of Technology
2- IC Design Research Lab, Electrical Engineering Department, Shahrood University of Technology
کلمات کلیدی :
External capacitor-less LDO،fast transient،low drop-out (LDO) regulator،power supply rejection (PSR)
چکیده :
Low drop-out (LDO) regulators play a vital role in power management systems, serving as a critical component. This research paper introduces an innovative LDO regulator that offers enhanced power supply rejection (PSR) and load transient response. In the proposed LDO, by using two OTAs as error amplifiers in a complementary scheme and transferring effectively the over/undershoot of the output voltage to their Tail transistors, the bias current of each OTA is modulated dynamically to improve the load transient response and slew rate. Besides, creating a zero by a low pass filter in the voltage supply terminal of the first error amplifier is caused to reduce the effect of the pole located in the gate of the pass transistor, which results in the improvement of the output PSR. These zeroes made the proposed LDO stable without any external off-chip capacitor with a phase margin of 60 degrees. The proposed design with an input voltage of 1.8 to 2.4 volts has a PSR of -69 dB at a frequency of 1 kHz. Also, the quiescent current of the LDO is as low as 600 nA, while delivers maximum current of 50 mA to the load.
لیست مقالات
لیست مقالات بایگانی شده
Numerical Investigation of Electroosmotic Micromixing: Performance Comparison Between Models With Different Frequencies
Ali Adnan Banna - Sajad Rezazadeh - Haleh Sadeghi
First Principles Study of Optical and Electrical Properties for Mixed-halide 2D BA2PbBr4-xClx (x=0, 2, and 4) as an Active Layer of Perovskite Light Emitting Diode
ُSamad Shokouhi - Seyedeh Bita Saadatmand - Vahid Ahmadi
Design of thermo-optic phase shifter in silicon nitride waveguide with focus on Heater dimensions
Reza Elyasi - Mehdi Khaje - Abdollah Eslami Majd
Ultra Low Power SRAM-PUF for IoT Devices Based on CNTFETs
Alireza Shafiei - Mehrnaz Monajati
Study of Nanoscale Material NEMS Resonant Pressure Sensors: Simulation and Comparison
Amir Noroolahi - Abolfazl Hosseini
Design of a time difference amplifier using phase-locked loop circuit blocks
Sina Bakhshi - Mehdi Ehsanian
مراحل طراحی سیستماتیک یک Continuous Time Pipelined ADC
هادی نبی زاده - مرتضی موسی زاده
Unified Modeling Framework for Dynamic Analysis of a MEMS Resonant Biosensor
Ali Selk Ghafari
تلفیق اینترنت اشیا و داده کاوی برای تشخیص بیماری دیابت: رویکردی هوشمند در پایش سلامت دیجیتال
سیده عارفه رضوی - وحید جمشیدی - محبوبه طالبی - ملیکا ناصری
Surface Plasmon Resonance-Based Biosensing for Vibrio Cholerae Detection: A Comprehensive Review
Zahra Davarjou - Mohammad Hadi Shahrokh Abadi
بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 42.6.0