LT1575CN8-2.8

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The LT1575CN8-2.8 is a monolithic low dropout positive voltage regulator enclosed in an 8-pin SO-package. This voltage regulator is designed to supply loads of up to 150 mA with a maximum voltage drop of 2.8 V. This regulator is capable of constant current, constant voltage, and pulse-by-pulse current limiting. It is also designed to provide fast transient response with a fast recovery time. The LT1575CN8-2.8 is ideal for use in battery-powered applications, such as portable electronics, cell phones, and laptop computers.

The LT1575CN8-2.8 supports an input voltage of up to 36 V and is stable with low load currents. The device also has a soft-start feature, which allows the output voltage to ramp up slowly in order to reduce the inrush current. The regulator also has an enable input, which allows the user to reduce power consumption by turning off the regulator when it is not needed. This regulator includes thermal shutdown for protection against overtemperature conditions.

The LT1575CN8-2.8 operates with a wide range of input and output voltages. The maximum output current is 150 mA which is ideal for powering small loads. The dropout voltage is typically 2.8 V, and the output voltage can be adjusted from 2.5 V to 36 V. With a combination of high efficiencies, good thermal performance, and wide operating temperature range, this voltage regulator is suitable for a wide range of applications.

The LT1575CN8-2.8 is a linear regulator controller and provides a voltage regulation function by using an NPN bipolar junction transistor as the series pass transistor. The base of the transistor is connected to the output of an error amplifier whose inverting input is connected to the voltagesense pin. The none inverting input of the error amplifier is connected to the reference voltage. The output voltage of the regulator is held at the desired voltage level by varying the current being sourced through the series pass transistor.

When the input voltage is applied, the error amplifier compares the voltagesense voltage to the reference voltage. The voltage difference between these two voltages causes an output from the error amplifier which is used to control the current in the series pass transistor. This causes the output voltage to be regulated at the reference voltage level. The output voltage can be adjusted by changing the voltage on the voltage adjust pin.

When the output load is increased the voltagesense voltage drops and the error amplifier sources more current to the series pass transistor in order to maintain the desired output voltage. When the load increases further, the voltage across the series pass transistor increases and the junction temperature increases. The thermal shutdown circuit senses the temperature and turns off the drive to the series pass transistor. This prevents overtemperature conditions from occurring, protecting the regulator from damage.

The LT1575CN8-2.8 is an ideal solution for a wide range of applications where a low dropout positive voltage regulator is required. It is stable with low load current and offers a wide range of input and output voltages. The enable input allows the user to shut down the regulator when it is not needed and the thermal shutdown prevents overtemperature conditions from occurring. This voltage regulator is a versatile and reliable solution for powering small loads.

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