LT1963ES8-3.3#TRPBF

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LT1963ES8-3.3#TRPBF is a linear voltage regulator for PMIC (Power Management Integrated Circuits). Its adjustable output range can extend from 1.2 V to 37 V with a 15 mA minimum load. Because of its low quiescent current and wide temperature range, this voltage regulator is suitable to be used in high efficiency, low power applications. Below is a description of its application field and working principle.

Application

The LT1963ES8-3.3#TRPBF is typically used in telecoms, networking, audio/video, logic and power management applications. Its wide output range and low quiescent current make it suitable for portable medical and consumer applications, such as cell phones, portable media players, PDAs, Bluetooth headsets, and other portable electronic devices. It is also widely used in various automotive applications that require high efficiency and low power consumption, such as automobile audio/video, power management systems and communication systems.

Working Principle

The LT1963ES8-3.3#TRPBF is an adjustable linear regulator with two terminals, a positive input terminal (VIN) and a negative output terminal (VOUT). The voltage regulation is done by adjusting the ratio of the resistors between the two terminals. When the input voltage is higher than the output voltage, the regulator switch automatically turns off and the output voltage maintains its set point. When the input voltage is lower than the output voltage, the output voltage also remains fixed. This voltage is then controlled by a series of feedback resistors. The greater the resistance between the two terminals, the lesser the voltage and current flowing through the regulator.

The LT1963ES8-3.3#TRPBF also has thermal shutdown protection to prevent it from overheating, which is usually caused by short-circuit or overload. This protection is triggered by monitoring the junction temperature of the internal transistor, which is then compared to a preset level. If the temperature exceeds this level, the regulator will shut down and resume its normal operation when the temperature returns below the preset level. The protection feature also prevents unnecessary power dissipation and increases the life expectancy of the regulator.

In addition, the LT1963ES8-3.3#TRPBF has low-dropout voltage, low quiescent current, very high PSRR (Power Supply Rejection Ratio) and wide common-mode range. These features make it suitable for use in high-efficiency apps, as it allows the regulator to achieve high efficiency at very low voltages while remaining stable.

Overall, the LT1963ES8-3.3#TRPBF is a stable, efficient, and reliable linear voltage regulator for many applications, ranging from medical and consumer electronics to automotive. It is suitable for those demanding high efficiency, low power consumption, and small form factor.

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