TC1016-4.0VCTTR

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TC1016-4.0VCTTR is a linear voltage regulator integrated circuit (IC) from Texas Instruments. It uses a PNP pass transistor along with a series regulator to provide low dropout and good power supply rejection ratio. It has a wide input voltage range of 2.5V to 20V, a maximum output current of 1A and an output voltage accuracy of 0.02%.

The TC1016-4.0VCTTR is used in applications that require a low dropout regulator with good stability and power supply rejection. It is suitable for use in small form factor applications, such as small battery powered devices. It can also be used in power scaling applications to optimize system power efficiency. It has a reference voltage accuracy of 0.1%, low quiescent current, and low ground current.

Application Field

The TC1016-4.0VCTTR is typically used in portable, battery-powered devices. It can also be used in embedded systems, medical equipment, and test and measurement systems. It is suitable for use in applications that require a low dropout voltage with low quiescent current.

The TC1016-4.0VCTTR can be used in a wide range of voltage regulating applications, as it is fully capable of providing a stable output voltage independent of input voltage variations. It also features a low cycle-by-series temperature coefficient. It is able to provide a stable output voltage without the need for additional logic or circuit components, even in low noise and highly disturbed power supply environments.

Working Principle

The TC1016-4.0VCTTR is based on a PNP pass transistor and series regulator topology. It features an adjustable series voltage regulator, a PNP pass transistor, and a reference voltage pin. The PNP pass transistor works in conjunction with the series regulator to regulate the output voltage. The adjustable series voltage regulator is used to set the output voltage. The reference voltage pin allows the regulator to adjust the output voltage accuracy over its wide temperature operating range.

The output voltage is regulated through a feedback loop. When the output voltage deviates from its reference, the controller regulates the output voltage to match the reference voltage by adjusting the duty cycle of the PNP pass transistor.

The PNP pass transistor acts like a switch, allowing or blocking electric current to flow through the output circuit. It will open briefly when the output voltage deviates from its reference voltage allowing current to flow from the input side to the output side.

The adjustable series voltage regulator gives the output voltage a certain precision, depending on the level set for it. The output voltage will remain within the acceptable range of ±0.02% regardless of the load conditions and temperature changes.

In summary, the TC1016-4.0VCTTR provides a low dropout voltage, excellent power supply rejection, and an accuracy of ± 0.02% over its wide temperature range. It is ideal for applications such as small battery powered devices, embedded systems, and medical equipment.

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