TC1017-2.9VLTTR

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TC1017-2.9VLTTR Application Field and Working Principle

TC1017-2.9VLTTR is a low-dropout voltage regulator (LDO) with a wide range of applications. It provides a highly efficient, low-noise solution for controlling the output voltage of electronic devices. The TC1017-2.9VLTTR is suitable for applications such as portable electronic devices, computers, electrical engineering, and home appliances.

The TC1017-2.9VLTTR belongs to PMIC category Voltage Regulators – Linear and it operates on the principle of linear regulation. This is a method of voltage regulation that attempts to maintain a constant output voltage by rectifying or other regulating the difference between the desired output voltage and the actual output voltage. The voltage regulator draws current from an input voltage source and delivers it to a load by adjusting the voltage. In linear regulation, the output voltage is kept constant by maintaining a controlled impedance between the output terminals, as opposed to switching regulators which depend upon maintaining a constant current.

The working principle of TC1017-2.9VLTTR is based on a two-transistor series circuit which is capable of providing a very low-noise output voltage. The voltage regulator consists of an input voltage, an error amplifier, a series pass transistor, a load and a reference voltage. The reference voltage is applied to the non-inverting input of the error amplifier. The output voltage is applied to the inverting input of the error amplifier and is compared with the reference voltage. The output of the error amplifier is used to control the base current of the series pass transistor, thus controlling the output voltage.

The TC1017-2.9VLTTR is designed to draw a quiescent current of only 9.5 mA from an input voltage range of 2.6V to 12V and the drop-out voltage is less than 2.9V. It has a very low noise output at 225uVrms, on-chip reverse battery protection, short-circuit protection and thermal shutdown. It also features a high output current of up to 1.2A and an adjustable current limit. The output voltage accuracy is ±1%. The TC1017-2.9VLTTR is available in SOT23-5, TO-220 and SO-8 packages and is ideal for battery-powered mobile, medical and industrial applications.

The TC1017-2.9VLTTR, as a low-dropout voltage regulator, is frequently used in schemes providing regulated voltage sources at low currents and is built on the principle of linear regulation. This device has low ripple noise, low quiescent current, adjustable output current limit and reverse battery protection and short-circuit protection. It is a suitable regulator for portable and battery-powered applications and is available in various package options.

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