AS78L05CZTR-E1

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The AS78L05CZTR-E1 is a voltage regulator from a family of low dropout (LDO) linear regulators that use a micro packaging technology. The AS78L05CZTR-E1 is capable of providing output current up to 100mA with a dropout voltage of only 400mV. It has an adjustable output voltage range from 1.2V to 5.5V with a typical static quiescent current of 20μA and a typical output voltage accuracy of ±1.0%. It also has on-chip temperature compensation circuitry and reverse current protection, making it ideal for applications that need precise voltage regulation at low currents.

The AS78L05CZTR-E1 is designed to provide a reliable, low cost and easy to use solution for many low voltage, low power applications. It is mainly used in areas such as cell phone chargers, multi-functional adaptors, digital cameras, toys, and various portable devices. The LDO is simple to use, it can be easily configured by a few external components. It typically requires just an input capacitor and an output capacitor to achieve stable regulation.

The AS78L05CZTR-E1 is a fixed low dropout voltage regulator with an adjustable output voltage. Its working principle is simple. The device consists of a three terminal voltage regulator, pass elements and an optional error amplifier. Its output voltage is determined by the voltage divider network on the ADJ pin and the feedback pin, FB. When the input voltage increases, a portion of the input voltage is transferred to the regulator’s output. This allows the output voltage to remain stable, regardless of input voltage fluctuations.

The primary benefit of the AS78L05CZTR-E1 is its high-efficiency power conversion and low power consumption. With only a few external components, the device is capable of achieving up to 94% efficiency and consuming just 45mW at full load. Furthermore, its low quiescent current and low dropout voltage help to reduce energy consumption, while its on-chip temperature compensation and reverse current protection help to protect sensitive components and extend the life of the device.

In summary, the AS78L05CZTR-E1 is an ideal choice for applications requiring precise voltage regulation at low currents, such as cell phone chargers, digital cameras, toys, and various portable electronics. Its small size and ease of use make it very attractive for many low voltage, low power applications. Its high efficiency power conversion and low power consumption are also beneficial for battery operated applications, as the device helps to reduce energy consumption and extend battery life.

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