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Title: A 0.9V 0.35μm adaptively biased CMOS LDO regulator with fast transient response
Authors: Lam, Yat-Hei
Ki, Wing-Hung
Keywords: Low dropout (LDO) regulator
Fast load transient response
Issue Date: 2008
Citation: Proceedings IEEE International Solid-State Circuits Conference, 2008. ISSCC 2008. Digest of Technical Papers. San Francisco, CA, USA, 3-7 February 2008, p. 442-443, 626
Abstract: Portable applications often need multiple voltages controlled by a power management IC to power up many functional blocks [1]. A switching pre-regulator is usually followed by a low dropout (LDO) regulator to provide a regulated power source for noise-sensitive blocks. The LDO regulator has to be stable for all load conditions and frequency compensation is usually needed to stabilize the regulation loop [2, 3]. The output voltage droop due to rapid and large load changes could be minimized with a fast regulation loop, such that functional blocks powered by the same LDO regulator would have low crosstalk noise.
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