TPS75318QPWPREP

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TPS75318QPW is a step-down voltage regulator from the series of TI TPS7531x. The TI TPS7531x series are low-dropout (LDO) linear regulator integrated circuits with adjustable output voltages, designed for automotive applications. They are available in two output voltage configurations: 3.6V and 5V. TPS75318QPW includes a built-in precision enable/disable input with hysteresis, plus several unique features to reduce power consumption and improve overall system performance.

The TPS75318QPW is designed to deliver an output voltage of 3.6V while providing ultra-low dropout performance. It features a wide input voltage range of 3.0V to 26V, with a maximum output current of 1A. It also includes a programmable enable/disable threshold, enabling users to precisely control the start and end of operation. Further, the TPS75318QPW reduces quiescent current consumption by more than 60% compared to other TPS7531x family members.

The TPS75318QPW is designed for automotive and industrial applications where a low power consumption, an adjustable output voltage and a wide operating temperature range are needed. Its applications include automotive interior, automotive engine control and headlight control, where the low output voltage is used to power a variety of microcontrollers and ASICs. It is also suitable for automotive audio, batteries for mobile devices, e-cigarettes, cellular phones, and numerous other portable consumer electronics applications.

The TPS75318QPW offers a robust integrated circuit design, which includes various unique features to reduce power consumption and eliminate the need for external components. In particular, its patented on-chip voltage reference eliminates the need for external precision components, while its programmable Enable/Disable Threshold reduces the need for external resistors. Further, it includes programmable Soft-Start and Over-Current Protection features which reduce current surge at startup and protect against overloads and short-circuits.

The TPS75318QPW uses the Buck-Boost converter topology to maintain a precise output voltage. Its operation is based on a regulated 8V reference voltage, which is then passivated to provide the output voltage required. A series of transistors are used to switch on and off the voltage at the input. This switching is done at a rate of up to 600 kHz, and is managed by a feedback loop, which continuously compares the input and output voltages. The feedback loop regulates the output voltage by providing the necessary current and switching the transistor on and off, thus efficiently reducing the difference between the input and output voltages.

In summary, the TPS75318QPW is a low-dropout voltage regulator designed for automotive and industrial applications. It features wide operating temperature range and an adjustable output voltage, along with various unique features to reduce power consumption and improve overall system performance. It uses a Buck-Boost converter topology to maintain a precise output voltage, and is suitable for applications such as automotive interior control, audio systems, batteries for mobile devices, and many other portable consumer electronics.

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