LT1764EQ-2.5#PBF

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The LT1764EQ-2.5#PBF is a linear voltage regulator that belongs to the PMIC (power management integrated circuit) category, and is specifically classified as a voltage regulator. It is a high efficiency, high speed, three-terminal adjustable regulator that can provide up to 2.5A of output current. It has several features and characteristics which make it suitable for various applications. This article will discuss the various application fields of the LT1764EQ-2.5#PBF, as well as its working principle.

Application Fields of LT1764EQ-2.5#PBF

The LT1764EQ-2.5#PBF is primarily used in power supply designs. It is capable of providing adjustable output current over a wide range of load conditions, which makes it ideal for use in processors, FPGAs, ASICs and other highly integrated microelectronics, as well as in other equipment that requires adjustable power supplies. It can also be used in automotive applications, such as power management, lighting, sensors and systems controllers. The device further has an integrated reset capability, and when used in conjunction with an external capacitor, this reset circuitry can serve as an over-temperature and short-circuit detection system.

The LT1764EQ-2.5#PBF is also suitable for use in battery powered applications. It can provide reliable power during the entire life-cycle of a battery, from fresh to near dead. This includes high peak currents required for short time intervals. It also has a low dropout voltage characteristics and is suitable for a very wide range of battery capacities, such as Li-ion, Li-Polymer, nicad, and more. Combined with adjustable output current and excellent line/load regulation characteristics, this makes the LT1764EQ-2.5#PBF a natural choice for battery powered applications.

Working Principle of the LT1764EQ-2.5#PBF

The LT1764EQ-2.5#PBF works by using a pulse-width modulation (PWM) control technique to regulate the output voltage. An integrated error amplifier compares the output voltage with the feedback voltage, and processes the signals to obtain the appropriate output voltage. This integrated error amplifier also reduces external component count and further enhances the power savings. The integrated PWM controller performs the necessary switching of the output voltage. The device also has additional features like over-voltage protection and over-current protection.

The LT1764EQ-2.5#PBF is designed with a switch mode technique, which utilizes the power stored in a large inductor to produce stored current pulses. These stored current pulses are used to charge and discharge the output capacitor, resulting in a voltage-controlled current source. This voltage-controlled current source is then used to regulate the output voltage. The switch mode technique also helps to reduce noise and ripple, making this device suitable for noise-sensitive applications.

The LT1764EQ-2.5#PBF also has an adjustable voltage reference, which is used to precisely adjust the output voltage according to the specific requirements of the application. This reference can be adjusted by connecting an external resistor to the enable pin. A push-pull reference enable circuit is also provided for further voltage adjustment.

Conclusion

The LT1764EQ-2.5#PBF is a linear voltage regulator belonging to the PMIC (power management integrated circuit) family, specifically classified as a voltage regulator. It is designed to provide adjustable output current over a wide range of load conditions, making it suitable for various power supply designs and automotive applications. Additionally, it has low dropout voltage characteristics and is capable of supplying reliable power during the entire life-cycle of a battery, such as Li-ion, Li-Polymer, nicad, and more. It utilizes PWM control and a switch mode technique to regulate the output voltage and reduce noise and ripple, and has an adjustable voltage reference for precise voltage adjustment. Overall, the LT1764EQ-2.5#PBF is a versatile, adjustable linear voltage regulator suited for many applications.

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