Title :
A low ripple fully integrated charge pump regulator
Author :
Soldera, J. ; Boas, A. Vilas ; Olmos, A.
Author_Institution :
Motorola - Brazil Semicond. Technol. Center (BSTC), Jaguariuna, Brazil
Abstract :
This paper presents a low-ripple voltage-controlled charge pump regulator intended to feed internal blocks in a chip to guarantee regular operation when the power supply voltage drops below some predefined value. The circuit was implemented using an array of voltage doublers with a regulation system improved by a voltage controlled oscillator in the feedback path and a voltage ripple minimization technique. The circuit size is 0.556 mm2 when fabricated in a 0.25 μm CMOS technology and can supply loads consuming up to 8 mA from a 1.6 V to 2.3 V power supply.
Keywords :
CMOS integrated circuits; circuit feedback; integrated circuit design; voltage multipliers; voltage regulators; voltage-controlled oscillators; 0.25 micron; 1.6 to 2.3 V; 8 mA; CMOS; charge pump regulator; feedback path VCO; fully integrated regulator; low ripple regulator; voltage doubler array; voltage ripple minimization; voltage-controlled oscillator; voltage-controlled regulator; CMOS technology; Charge pumps; Circuits; Flash memory; Low voltage; Minimization; Power supplies; Regulators; System-on-a-chip; Voltage-controlled oscillators;
Conference_Titel :
Integrated Circuits and Systems Design, 2003. SBCCI 2003. Proceedings. 16th Symposium on
Print_ISBN :
0-7695-2009-X
DOI :
10.1109/SBCCI.2003.1232825
