Title :
EMI resisting LDO voltage regulator with integrated current monitor
Author :
Schroter, Philipp ; Jahn, Stefan ; Klotz, Frank ; Ballarin, Fabio ; Gini, F. ; Piselli, Marco
Author_Institution :
Automotive Power EMC Center, Neubiberg, Germany
Abstract :
This paper introduces a low dropout (LDO) voltage regulator with an integrated current monitor, which sets a new performance benchmark in terms of RF immunity. Compared to classic topologies the proposed circuit succeeds in a very high robustness against RF disturbances which are superimposed into the regulator´s battery voltage (VS) pin and output (OUT) pin. The proposed circuit was designed using a HV-BiCMOS technology for automotive applications. Circuit theory is explained in detail and the proposed approach is confirmed by RF immunity measurements.
Keywords :
BiCMOS integrated circuits; automotive electronics; electromagnetic interference; voltage regulators; EMI; HV-BiCMOS technology; LDO voltage regulator resistance; OUT pin; RF immunity measurements; VS pin; automotive applications; battery voltage pin; circuit theory; electromagnetic interferences; integrated current monitor; low dropout voltage regulator; output pin; Capacitors; Electromagnetic compatibility; Gain; Integrated circuits; Radio frequency; Regulators; Voltage control; RF-immunity; analog integrated circuits; electromagnetic interferences (EMIs);
Conference_Titel :
Electromagnetic Compatibility of Integrated Circuits (EMC Compo), 2013 9th Intl Workshop on
Conference_Location :
Nara
DOI :
10.1109/EMCCompo.2013.6735182
