A low power LDO with high PSR over a wide frequency range based on an impedance attenuation buffer
-
- Pei Jiajian
- College of Optoelectronic Engineering, Chengdu University of Information Technology
-
- Sun Ping
- College of Optoelectronic Engineering, Chengdu University of Information Technology
-
- Li Shijun
- College of Optical and Electronic Technology, China Jiliang University
-
- Xiao Yao
- College of Optoelectronic Engineering, Chengdu University of Information Technology
-
- Cai Jianfeng
- Sichuan Province School State-owned Assets and Educational Equipment Cente
Abstract
<p>A low-dropout voltage linear regulator with low quiescent current and high PSR over a wide frequency range is designed to meet the application requirements of high-performance CMOS image sensor. An embedded impedance attenuation buffer is proposed to embed the feedforward path into the buffer, reduce the quiescent current and improve PSR in a wide frequency range. The simulation result shows that LDO achieves a PSR better than 60dB up to 10MHz for load current up to 100mA. The LDO achieves 65dB PSR at 1MHz and 90dB PSR at 1KHz. LDO consumes a quiescent current of 36uA with a bandgap reference circuit included.</p>
Journal
-
- IEICE Electronics Express
-
IEICE Electronics Express 21 (6), 20230640-20230640, 2024-03-25
The Institute of Electronics, Information and Communication Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390018120873450624
-
- ISSN
- 13492543
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- Crossref
-
- Abstract License Flag
- Disallowed