LT1963EFE-3.3#TRPBF

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LT1963EFE-3.3#TRPBF is a low-dropout, low-noise, high-accuracy, adjustable, three-terminal linear voltage regulator. It is an integrated circuit (IC) used for regulating the output voltage of a power supply. This regulator is housed in a thermally enhanced 10-pin EP Exposed Pad package and can be used in various applications where a precise and reliable voltage is needed.

The device includes an externally adjustable shunt regulator which, when combined with an external resistor divider, allows the output voltage to be preset and trimmed to any value between 1.2 V and 3.3 V. The output voltage can also be adjusted on-the-fly using an external reference voltage.

The device has low dropout voltage, low noise, excellent line and load regulation, and fast transient response, making it ideal for low-power, low-voltage applications. Moreover, its low quiescent current and low temperature coefficient ensure that the output voltage is stable and accurate.

The LT1963EFE-3.3#TRPBF has various application fields. Some of them are:

• DC-DC conversion - Can be used for controlling the output voltage of a switch-mode DC power supply.

• Power management - Can be used for powering microprocessors and other high-current ICs, as well as for managing power supply sequencing and sequenced power-up and power-down.

• Test & Measurement - Can be used for providing precise and reliable voltage outputs, such as for setting bias voltages or providing multiple reference or test points.

• Automotive Applications - Can be used in cars and other vehicles, where low dropout voltage and high accuracy is required, such as for supplying power to air-bag system components, or for sensor biasing.

• Battery charging - Can be used for setting and controlling the output voltage of lithium-ion battery chargers.

• Portable electronics – Can be used in applications such as mobile phones and other handheld devices, where low power consumption is necessary.

The LT1963EFE-3.3#TRPBF operates by the principle of negative feedback. The device includes an error amplifier which has its input connected to the external reference voltage, and its output connected to the base of a pass transistor. When the output voltage and the reference voltage match, the error amplifier produces a voltage (VFB) so that the pass transistor remains in a constant current state. This results in a regulated output voltage. If the output voltage deviates from the reference voltage, the error amplifier will adjust the pass transistor’s current state appropriately, eventually restoring the output voltage to the desired value. The output voltage is then further kept stable by the loop gain of the error amplifier.The LT1963EFE-3.3#TRPBF features internal current limiting, overload protection, and safety shutdown protection. It also has an internal thermal shutdown protection feature, which keeps the device from overheating.The LT1963EFE-3.3#TRPBF is an ideal device for applications requiring low-dropout, low-noise, high-accuracy, adjustable, three-terminal linear voltage regulation. It has various application fields such as DC-DC conversion, power management, test & measurement, automotive applications, battery charging, and portable electronics. Furthermore, it operates by the principle of negative feedback. It has numerous protection features like internal current limiting, overload protection, and thermal shutdown protection. Therefore, it is an efficient, reliable, and safe voltage regulator.

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