TPS76327DBVTG4

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TPS76327DBVTG4 is an ultra-low voltage, ultra-low dropout linear regulator that employs the latest process technology. It is designed to provide efficient and ultra-low noise output regulation for applications operating in extreme voltage and thermal conditions. The regulator utilizes a husky p-channel MOSFET output stage and a low dropout circuit topology to provide extremely low quiescent current, very low output noise, and fast transient response.

The TPS76327DBVTG4 is well suited to applications that require low dropout output regulation over a wide voltage range, such as telecommunications, automotive, and industrial control. The device is available in a 2mm × 2mm Green QFN; it operates over the -40°C to 125°C temperature range, and is packaged in an environmentally friendly, lead-free, RoHS-compliant package.

Application Field

The TPS76327DBVTG4 regulator is ideal for applications that require extremely small-signal precision linear regulation. It is suitable for low voltage regulation applications including active filters, precision amplifier supplies, smart cards, mobile phones, and other portable product applications.

It is also well suited for use in automotive, industrial control, and clinical systems, where high accuracy and low power are desired. Its low dropout ensures stable output current in systems with large input-output voltage differences.

Working Principle

The TPS76327DBVTG4 is a precision low dropout linear voltage regulator. It consists of a voltage reference, an error amplifier, a high power p-channel power MOSFET, and an output voltage divider. This configuration allows the device to maintain a very low quiescent current while still supplying a maximum output current of 150mA.

The main components of the TPS76327DBVTG4 are a voltage reference and an error amplifier. The voltage reference stabilizes the output voltage by providing a stable reference voltage. This reference voltage is compared to the output voltage, and the error amplifier amplifies the difference between the two.

The error amplifier is connected to the output voltage divider, which allows for an accurate setting of the output voltage. The voltage divider also serves to extend the output voltage range up to 5.5V. The output voltage divider coupled with the high-power p-channel MOSFET enables the regulator to maintain low dropout and low output noise while minimally impacting device power supply performance.

The output of the error amplifier is then connected to the gate of the power MOSFET, and the gate voltage is modulated such that the output voltage is regulated. This is accomplished by pulling the drain voltage up in response to a decrease in output voltage, thus increasing the output current and regulating the output.

By employing a low dropout, low noise, and low power configuration, the TPS76327DBVTG4 regulator provides efficient and ultra-low noise output regulation for applications operating in extreme voltage and thermal conditions.

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