Nxp Usa, Inc.

Freescale Semiconductor,inc.

Alexandre Pujol

Mohammed Mansri

Valerie Bernon-Enjalbert

Philippe Givelin

Jean-Christophe Patrick Rince

Thierry Robin

Tarek Hakam

The present invention pertains to a linear power regulator device that includes an internal pass device, a driver device having a driver output arranged to drive the internal pass device via the driver output. The linear power regulator device also includes an external connection connectable or connected to an external pass device; and the driver device is arranged to drive the external pass device via the driver output and the external connection.

Linear power regulator device with variable transconductance driver

A power regulator includes an output terminal to provide a regulated voltage, a first control unit to control a first operation mode, a second control unit to control a second operation mode, and a detection unit connected to the output terminal. The detection unit detects, at start-up, whether or not an external inductor is connected to the output terminal, activates the first operation mode when an external inductor is detected, and activates the second operation mode when no external inductor is detected. The detection unit also detects in which of at least two distinct inductance ranges the inductance of the detected inductor lies so as to provide inductance dependent control in the first operation mode.

Multiple mode power regulator

A voltage regulator circuit arranged to receive a voltage supply signal, and to output a regulated voltage signal is described. The voltage regulator circuit comprises at least one switched mode power supply component selectively configurable to perform regulation of the voltage supply signal, at least one linear voltage regulator component selectively configurable to perform regulation of the voltage supply signal, and at least one controller component. The at least one controller component is arranged to receive an indication of a voltage level of the voltage supply signal, and configure a bulk connection for at least one switching device of the at least one linear voltage regulator component such that current flow from an output of the voltage regulator circuit to an input of the voltage regulator circuit through the bulk of the at least one switching device of the at least one linear voltage regulator component is resisted, if the indicated voltage level of the voltage supply signal is less than the threshold voltage level.

Voltage regulator circuit and method therefor

The present invention pertains to a linear power regulator device, comprising an internal pass device, a driver device having a driver output arranged to drive the internal pass device via the driver output, wherein the linear power regulator device comprises an external connection connectable or connected to an external pass device; and wherein the driver device is arranged to drive an external pass device via the driver output and the external connection. The invention also pertains to a corresponding electronic device.

Linear power regulator with device driver for driving both internal and external pass devices

A switching power converter for DC-DC converting has an inductance coupled between a power output and a high side switch in a controller device. The controller device has an error amplifier coupled to the power output and a reference voltage for activating the high side switch. The controller device has a bypass circuit including a bypass switch coupled between the supply input and the power output, a bypass driver having a first input coupled to the power output and a second input coupled to the reference voltage, and an output coupled to the bypass switch for activating the bypass switch. The controller further has a high bypass current sensor for generating a transient signal based on a current via the bypass switch, and a bandwidth control circuit for increasing the bandwidth of the error amplifier based on the transient signal.

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Ste Foy d'Aigrefeuille, France

Alexandre Pujol