AP2125KS-1.8TRG1

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Linear voltage regulators are widespread and widely used in a variety of applications. AP2125KS-1.8TRG1 is a linear voltage regulator with a low-dropout (LDO) design, providing numerous benefits and features. This article aims to explore its application field, as well as its working principles.

Overview

AP2125KS-1.8TRG1 is a low-dropout-voltage (LDO), linear voltage regulator with a wide range of output voltage options. This regulator provides superior performance, with an ultra-low line-transient response (1μA). It also features an adjustable output voltage range of ≤ 1.8V and a temperature range of -40℃ to 85℃, making it a very versatile device.

Application fields

AP2125KS-1.8TRG1 can be used for numerous applications, such as supplying power to microprocessors, microcontrollers, digital-signal processors, and other digital ICs that require a low-noise supply. This regulator is also suitable for powering synchronous rectification controllers, LCD drivers, image sensors, I/O ports, and other components that require a low-noise, low-dropout, linear regulator. Additionally, this device is commonly used in battery-powered systems, including handheld devices, as it provides low quiescent current and high-efficiency conversion.

Features and Benefits

AP2125KS-1.8TRG1 provides numerous advantages, including low output noise, low dropout voltage, low quiescent current, and low line-transient response. Additionally, this device offers a wide adjustment range and excellent thermal stability, ensuring reliable and clean power delivery in demanding environments. The regulator also features over-current protection, over-temperature protection, and output short-circuit protection, making it a highly reliable device.

Working principle

AP2125KS-1.8TRG1 is a linear voltage regulator that works in two stages: a reference part and a follower part. In the reference stage, the output voltage is compared with an internal reference voltage of 1.2V. In the follower stage, the error-amplifier output is used to drive a PMOS/NMOS cascode circuit, which provides active current drive to the output. The output voltage is then adjusted to match the reference voltage, allowing this regulator to deliver a regulated output voltage.

Conclusion

In summary, AP2125KS-1.8TRG1 is a low-dropout, linear voltage regulator with a wide range of output voltage options. This device is suitable for a variety of applications and provides numerous benefits, including low output noise, low dropout voltage, low quiescent current, and low line-transient response. Furthermore, it offers over-current protection, over-temperature protection, and output short-circuit protection. Finally, it works by comparing an internal reference voltage of 1.2V to the output voltage of the regulated device and adjusting the output voltage to match the reference voltage.

The specific data is subject to PDF, and the above content is for reference