LT3021ES8#PBF

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LT3021ES8#PBF Application Field and Working Principle

The LT3021ES8#PBF is a high-performance Low-Dropout (LDO) linear regulator from Linear Technology which has been designed for a variety of applications in high-reliability, high-precision electronic systems. It is particularly useful in applications that require a reliable power source, such as medical devices, industrial and hand-held systems, wireless communications, and high-end consumer electronics.

The LT3021ES8#PBF is capable of delivering up to 300mA of output current and offers a low-noise operation with a high-output accuracy and an adjustable output voltage range from 1.8V to 6.0V. It has an input voltage range up to 28V, making it suitable for use with a wide variety of power sources. The operating temperatures range from 0°C to +85°C.

The LT3021ES8#PBF features a low quiescent current, high-output accuracy over a wide range of temperature, short-circuit protection, enable/shutdown option, and reverse-current protection. It also includes a power-good output, an adjustable current limit, over-voltage protection, and overtemperature protection. Its low output noise and low input/output voltage difference make it ideal for powering low-noise circuits.

The LT3021ES8#PBF’s working principle is based on a simple power delivery system composed of an input voltage source, a switching transistor, and a passive element that is used to maintain a stable output voltage. The input voltage is converted to a proportionally higher level by the switching transistor which regulates the current. The passive element maintains a stable output voltage. This control scheme is known as voltage regulation, and it is the basis of all linear voltage regulators.

The input voltage is monitored and compared to the setpoint voltage. This comparison value is then transformed into a corresponding control signal. The control signal is used to control the switching transistor, which then adjusts the output voltage to match the setpoint voltage. In this way, the output voltage is stabilized to remain near the setpoint voltage, even when the input voltage varies or the load changes.

The LT3021ES8#PBF regulator features a durable and reliable design that allows it to be used in a variety of applications and environments. Its wide operating temperature range, high accuracy, and protection features make it a suitable and reliable power source for a variety of applications.

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