Capacitor-less LVR for a 32-bit automotive microcontroller SoC in 65nm CMOS

Author

Jackum, T. ; Pribyl, W. ; Praemassing, F. ; Maderbacher, G. ; Riederer, R.

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

329

Lastpage

332

Abstract

In this paper an output capacitor-less linear voltage regulator (LVR) for very fast load transients of up to 100mA/10ns is proposed. The LVR is designed for providing the core voltage supply of a microcontroller (μC) system in an automotive environment. It makes use only of the load capacitance of the μC core without any additional buffer capacitor. The target supply voltage ranges from 2.97V to 5.5V while the output voltage is 1.3V. The maximum load current is 200mA while consuming 176μA quiescent current. A test chip of the LVR was fabricated in a 65nm digital CMOS process and the measurement results are presented.

Keywords

CMOS digital integrated circuits; automotive electronics; microcontrollers; system-on-chip; voltage regulators; automotive microcontroller SoC systen; buffer capacitor; capacitorless LVR; capacitorless linear voltage regulator; core voltage supply; current 176 muA; current 200 mA; digital CMOS process; load transients; size 65 nm; voltage 1.3 V; voltage 2.97 V to 5.5 V; word length 32 bit; CMOS integrated circuits; Capacitance; Capacitors; Clocks; Logic gates; System-on-a-chip; Transistors; LDO; LVR; capacitor-free; capacitor-less;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC (ESSCIRC), 2012 Proceedings of the

Conference_Location

Bordeaux

ISSN

1930-8833

Print_ISBN

978-1-4673-2212-6

Electronic_ISBN

1930-8833

Type

conf

DOI

10.1109/ESSCIRC.2012.6341321

Filename

6341321