A CMOS voltage regulator for passive RFID tag ICs | Zendy

Guo Jianping | Zendy; Leung Ka Nang | Zendy

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A CMOS voltage regulator for passive RFID tag ICs

Author(s) -

Guo Jianping,

Leung Ka Nang

Publication year - 2012

Publication title -

international journal of circuit theory and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.364

H-Index - 52

eISSN - 1097-007X

pISSN - 0098-9886

DOI - 10.1002/cta.726

Subject(s) - low dropout regulator , dropout voltage , voltage regulator , cmos , voltage reference , electrical engineering , voltage , power supply rejection ratio , reset (finance) , regulator , voltage divider , schmitt trigger , pulse width modulation , power (physics) , engineering , electronic engineering , switched mode power supply , physics , biochemistry , chemistry , quantum mechanics , financial economics , economics , gene

SUMMARY A low‐power voltage regulator for passive RFID tag ICs is proposed in this paper. It consists of a self‐biased mutually compensated voltage reference, a low dropout (LDO) voltage regulation circuit and a power‐on‐reset (POR) circuit. It is fabricated in a commercial 0.18−µm CMOS technology and applied to a passive UHF RFID tag IC. The total quiescent current is 700 nA under a 1.8‐V supply. The output voltage of the regulator is 1.45 V with load capability of 50 µA. The temperature coefficients of the voltage reference and the output voltage are only 9 and 43 ppm/ ∘ C, respectively. A POR signal with width pulse of 150 ns is generated for the digital part in the tag IC. Copyright © 2010 John Wiley & Sons, Ltd.

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