ASP1251-W08T

Series:	*
Part Status:	Last Time Buy

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Introduction

The ASP1251-W08T is a special purpose adjustable voltage regulator requiring minimal external components for a wide range of applications. This device features three control modes, improved output accuracy and immunity to both a noisy environment, and over-voltage conditions.

Application Field and Working Principle

The ASP1251-W08T has a wide range of applications, including personal digital assistants, digital cameras, radio equipment, audio and digital television, game consoles, battery-powered systems, computing and communications.This device is made up of the step-down converter and the adjustable voltage regulator controlling the output voltage of the step-down converter. The output voltage is set by an external resistor connected between the output voltage adjustment pin and the ground. It offers three operation modes: Auto-Foldback Indirect Regulation, Direct Regulation and Single Feedback Regulation. These modes are used to maintain an accurate output voltage, while taking into account different requirements, such as low voltages, small packages and current sense amplifiers to regulate the output voltage. The ASP1251-W08T has excellent load and line transient response, ensuring that the output supply remains stable during load changes. It also has the ability to withstand both over-voltage and noisy conditions, and provides very low output voltage accuracy. The chip can be powered by an external input voltage up to 5.25V and draws a maximum quiescent current of just 60mA, that depends on the output voltage setting. Furthermore, it requires few external components and takes up a minimal board space.

Conclusion

The ASP1251-W08T is a versatile voltage regulator, capable of maintaining a highly accurate output voltage, under a wide range of conditions. Moreover, it requires very few external components to operate, taking up very little board space. Due to its wide range of applications and its performance characteristics, it is fast becoming the standard choice for battery powered applications. While the ASP1251-W08T offers excellent performance, it is important to select the correct operation mode for the application in order to get the most optimal performance out of the device.

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