期刊文献+

Design of an LDO with capacitor multiplier

Design of an LDO with capacitor multiplier
原文传递
导出
摘要 This paper presents a low quiescent current,highly stable low-drop out(LDO) regulator.In order to reduce capacitor value and control frequency response peak,capacitor multipliers are adopted in the compensation circuit with mathematic calculations.The phase margin is adequate when the load current is 0.1 or 150 mA.Fabricated in an XFAB 0.6μm CMOS process,the LDO produces 12.2 mV(0.7%) overshoot voltage while the current changes at 770 mA/100μs with a capacitor load of 10μF. This paper presents a low quiescent current,highly stable low-drop out(LDO) regulator.In order to reduce capacitor value and control frequency response peak,capacitor multipliers are adopted in the compensation circuit with mathematic calculations.The phase margin is adequate when the load current is 0.1 or 150 mA.Fabricated in an XFAB 0.6μm CMOS process,the LDO produces 12.2 mV(0.7%) overshoot voltage while the current changes at 770 mA/100μs with a capacitor load of 10μF.
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2010年第7期127-130,共4页 半导体学报(英文版)
关键词 LDO frequency compensation capacitor multiplier dynamic bias BUFFER LDO frequency compensation capacitor multiplier dynamic bias buffer
  • 相关文献

参考文献4

  • 1Rincon-Mora G A. Active capacitor multiplier in Miller- compensated circuits. IEEE Trans Solid-State Circuits, 2000, 35(1): 26.
  • 2LTC4063, standalone linear Li-ion charger with micropower low dropout linear regulator. Datasheet. Linear Technology Corporation, 2005.
  • 3Al-Shyoukh M, Lee H. A transient-enhanced low-quiescent current low-dropout regulator with buffer impedance attenuation. IEEE J Solid-State Circuits, 2007, 42(6): 1732.
  • 4Lee H, Mok P K T. Active-feedback frequency-compensation technique for low-power multistage amplifiers. IEEE J Solid- State Circuits, 2003, 38(3): 511.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部