Active leakage consuming module for LDO regulator

US8836303B2 · kind B2 · utility

Assignee

• ST-ERICSSON SA · CH

Inventors

• Karel Napravnik · Praha, CZ
• Alexandre Pons · Les Cormiers, FR

Key dates

• Filing date: Dec 13, 2011
• Grant date: Sep 16, 2014
• Expiry date: Dec 13, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F1/56
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An active leakage consuming module (1001) is to be added to an LDO regulator without modification of the structure of this latter. The module provides a low-power operating mode with reduced current consumption, without impairing an operation of the LDO regulator for higher currents output by said LDO regulator. The module comprises a leakage current path (54) and control means (40, 50) for conducting consumed current below a threshold out of a pull-down path of the LDO regulator.