TCR4DG28,LF

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Linear voltage regulators are typically integrated circuits that consists of circuits that can regulate a specific output voltage when supplied higher input voltages. The TCR4DG28,LF is a positive adjustable voltage regulator with a maximum output current of 1.5A. It is designed for applications that require low noise, low dropout and fast transient response.

The voltage dropout of the TCR4DG28,LF is 30mV typ. and is suitable for a wide range of applications including PCs (Personal Computers), laptop computers, mobile phones, and consumer electronics such as video cameras, music players and digital cameras. It also offers a high power supply rejection ratio (PSRR) of 65dB typ. at 1MHz with an operating temperature range of -40°C to +85°C.

The working principle of the TCR4DG28,LF is based on the negative feedback loop which ensures that the output voltage always remains constant despite any changes in the input voltage or load current. This is achieved by monitoring the output voltage with an internal voltage reference and adjusting the voltage accordingly to maintain the output voltage. This is facilitated by the use of an error amplifier and a P-channel power MOSFET or bipolar pass transistor.

Furthermore, the TCR4DG28,LF features a very low quiescent current of 15mV and a great power supply noise rejection of 50dB at 1MHz. It is available in an 8-lead SOIC package which is suitable for space-sensitive applications. It has an input voltage range of 4.5V to 13.2V with an adjustable output voltage range of 1.24V to 7.0V.

Thus, the TCR4DG28,LF linear voltage regulator is a highly efficient and reliable device that ensures that the output voltage is maintained constant despite any changes in the input voltage or load current. It provides very low power consumption and low output voltage dropout which makes it suitable for a wide range of applications.

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