AS1351-Z

Introduction

The AS1351-Z is a versatile voltage regulator integrated circuit (IC) designed by ASPAR Semiconductor. It combines adjustable-voltage technology, precise voltage regulation, and low-noise operation in a small package, making it suitable for a variety of power management applications. The IC is designed to provide precise, adjustable voltages to different types of integrated circuits, allowing engineers to achieve optimal performance in any given situation.

The IC is packaged in a QFN 8-pin version. It is composed of a high-efficiency operating amplifier, a high-accuracy voltage reference, a precision current source, and an active current limit. This enables the device to control a wide range of output voltages, from 0.6V to 5.5V. Moreover, the device features a low noise voltage ripple and regulation. By optimizing the system-level power management, the device can reduce power dissipation and save costs.

Application Field

The AS1351-Z is suitable for a wide range of applications, such as industrial, automotive, and consumer electronics. As it can provide an accurate and reliable output voltage, the AS1351-Z can be used for power management for CPUs, DSPs, FPGAs and ASICs. In addition, it can be used to provide a stable voltage for communication systems and other portable devices.

The AS1351-Z is also suitable for providing power for LED drivers, hard disk drives, and LCDs. It can provide a precise, adjustable voltage for all kinds of TTL logic ICs, as power supplies for motors, and as voltage converters. Its low power consumption makes it ideal for battery-powered applications. In addition, the low noise generated by the AS1351-Z helps to minimize electromagnetic interference, allowing for clear audio and video signals.

Working Principle

The AS1351-Z uses a linear regulator to regulate the output voltage, which is set by a voltage reference. The device is configured to work in a feedback mode, in which the output voltage is compared with the voltage reference, and a voltage error signal is generated. This signal is used to control the main switch, which then corrects the output voltage error and adjusts the output voltage to the desired value.

The AS1351-Z also features a temperature compensation circuit. This circuit prevents the output voltage from dropping when the temperature rises and increases the output voltage when the temperature decreases. This ensures that the output voltage remains stable regardless of the ambient temperature.

In addition, the device features a short-circuit protection circuit and an overcurrent limiting circuit. The short-circuit protection circuit protects the component from damage due to a short-circuit event. The overcurrent limiting circuit limits the output current to the maximum limit, preventing damage to the component from excessive current consumption.

Conclusion

The AS1351-Z is a versatile voltage regulator integrated circuit designed by ASPAR Semiconductor. It combines adjustable-voltage technology, precise voltage regulation, and low-noise operation in a small package, making it suitable for a variety of power management applications. As it can provide an accurate and reliable output voltage, the AS1351-Z can be used for power management for CPUs, DSPs, FPGAs and ASICs. In addition, it is also suitable for providing power for LED drivers, hard disk drives, and LCDs. The AS1351-Z is packaged in a QFN 8-pin version.