Freescale Semiconductor,inc.

Nxp Usa, Inc.

Chang Joon Park

Charles Eric Seaberg

Octavio A Gonzalez

Ravichandar Reddy Geetla

Ravi C Geetla

A temperature sensor configured to, after a predetermined number of stop counting assertions, determine the temperature dependent voltage and thus the temperature at the output of a counter. During a calibration phase, when a counter value is not equal to a test counter value in a pulse generator circuit, capacitance of the temperature sensor is adjusted until the counter value is equal to the test counter value.

Temperature sensor in an integrated circuit and method of calibrating the temperature sensor

A circuit and method for regulating an output voltage are provided. The circuit includes a fully differential first stage amplifier, a second stage amplifier, and a power output driver transistor. The first stage amplifier receives a reference voltage and feedback voltage relative to an output voltage of the power output driver transistor. A differential output of the first stage amplifier is received at differential inputs of the second stage amplifier. The second stage amplifier provides a voltage at a control terminal of the power transistor. The output voltage of the power transistor is based on the voltage at the control terminal and a supply voltage coupled to the power output driver transistor.

Low drop out voltage regulator and method therefor

A circuit includes a first transistor having a first current electrode coupled to a first power supply node, a second current electrode coupled to a switching node; a second transistor having a first current electrode coupled to the switching node, a second current electrode coupled to a second power supply node; an inductor having a first terminal coupled to the switching node, a second terminal coupled to an output node; a third transistor having a first current electrode coupled to the output node, a second current electrode coupled to the switching node; a driver circuit configured to transition the switching node from a first voltage to a second voltage by turning on the third transistor to couple the output node to the switching node during a first time period, turning on the first transistor to couple the first power supply node to the switching node during a second time period.

Switching scheme to extend maximum input voltage range of a DC-to-DC voltage converter

An integrated circuit device includes a driver circuit () having a pull-up network with a first pull-up transistor () coupled to a second pull-up transistor () at a first node (VP), and a pull-down network coupled to the pull-up network including a first pull-down transistor () coupled to a second pull-down transistor () at a second node (VN). A first bias switch () is coupled to the first node. A second bias switch () is coupled to the second node. A control circuit () is coupled to operate the first and second bias switches. The first bias switch is operated to reduce a voltage at the first node during a pull-down cycle of the driver circuit and the second bias switch is operated to reduce a voltage at the second node during a pull-up cycle of the driver circuit.

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Austin, TX, United States of America

Chang Joon Park