A low power LDO with high PSR over a wide frequency range based on an impedance attenuation buffer

DOI Web Site 参考文献27件
  • 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

抄録

<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>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 21 (6), 20230640-20230640, 2024-03-25

    一般社団法人 電子情報通信学会

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