LT1965EDD-1.5#TRPBF

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PMIC Voltage Regulators are designed to provide a precise output voltage from a relatively-low voltage input. The LT1965EDD-1.5#TRPBF is a high-efficiency, low-dropout linear regulator designed for low-noise applications. It offers the advantage of greater output power delivery that can enable higher output current in addition to lower dropout voltage. This article will discuss its application field and working principle.

Application Field

The LT1965EDD-1.5#TRPBF is suitable for use in point-of-load (POL) and distributed power supply applications. Its tight tolerances and overcurrent protections guarantee reliable operation and protection of the load. In low-noise applications, the low-noise switching frequency and low dropout voltage are beneficial, while higher switching frequencies are suitable in applications requiring higher output power such as digital cameras or other portable devices.

It also has low-input and low-output noise and low-ground current, ideal for delivering regulated voltage from a low-voltage, high-current source. The LT1965EDD-1.5#TRPBF is often used in hot-swappable supply rails for automotive applications, in applications requiring a high-efficiency regulator, such as battery-powered circuits, and in power-sensitive portable electronics.

Working Principle

The LT1965EDD-1.5#TRPBF works by regulating the input voltage with an internal reference voltage. This reference voltage sets the voltage at which the regulator will operate, and it can also be adjusted with an external resistor. The reference voltage and input voltage are compared to determine how much current needs to be drawn in order to keep the output voltage stable.

When the input voltage is higher than the reference voltage, the device will draw current out of the source and divert that to the load in order to maintain the output voltage. When the input is lower than the reference, then the device will draw current from the load and redirect it to the source in order to maintain the output voltage.

The output voltage can also be adjusted by changing the reference voltage of the LT1965EDD-1.5#TRPBF, which is done by connecting an external resistor to the REF pin. The resistor value changes the reference voltage, which in turn changes the output voltage. This makes the device more versatile and able to be used in a wider range of applications.

Conclusion

The LT1965EDD-1.5#TRPBF linear regulator is a high-efficiency, low-dropout regulator designed for low-noise applications. Its application field includes point-of-load, distributed power supply, automotive, and portable electronics applications. Its working principle is based on regulating the input voltage with an internal reference voltage and adjusting the output using an external resistor.

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