ZXTR2005Z-7 Integrated Circuits (ICs)

The ZXTR2005Z-7 is a low dropout (LDO) regulator, specifically designed to supply power to low-voltage systems such as those powered by batteries. It is a monolithic integrated circuit featuring low quiescent current and low dropout voltage, while maintaining low noise operation, high reliability and long-term stability. By using an internal P-channel MOSFET, the ZXTR2005Z-7 can provide high instantaneous current, up to 1.5A. It is available in an 8-pin SOIC or a 7-pin USP package, making it ideal for mobile applications.

Application Field

The ZXTR2005Z-7 is designed for low voltage applications such as those powered by 1-cell Li-Ion/PolymerIonbatteries, in small, space constrained applications. Its small footprint and low quiescent current (as low as 40 μA) make it ideal for use in mobile and hand held systems. Its low dropout voltage (maximum 0.4V across a 0.9-V output) provides for improved system performance in low voltage systems.

Its wide input voltage range (from 2.3V to 5.5V) makes it suitable for use in many different types of applications, including battery-powered devices, cellular phones, and other portable electronic products. It is also suitable for use in automotive and industrial applications, where it can provide the necessary reliability, robustness and power efficiency.

Working Principle

The ZXTR2005Z-7 is a linear regulator, meaning it is based on the principle of using a low voltage reference voltage to regulate the output voltage. This works by controlling the amount of current that flows from the input source to the output load by means of a feedback mechanism. The feedback loop adheres to the basic Vref → Amp →Output formula, where Vref is the reference voltage, Amp is the current amplifier, and Output is the output voltage.

The regulator works by comparing the output voltage to the Vref and if the output voltage is lower than the reference an error signal is generated. If the difference between the output voltage and the Vref is greater than a specified amount, then the current amplifier will increase the current to the output load. This in turn will increase the output voltage and when the output voltage reaches the reference voltage, the error signal will cease.

The ZXTR2005Z-7 provides excellent system performance through its built-in features. These features include thermal shutdown, under-voltage lockout, and over-temperature protection. These features allow for enhanced system reliability, robustness, and power efficiency. In addition, this device also has low quiescent current, low dropout voltage, and high pulse current capability, making it ideal for mobile applications.

Conclusion

The ZXTR2005Z-7 is a small, low dropout LDO regulator specifically designed for low voltage applications. It is capable of supplying high instantaneous current up to 1.5A and has a wide input voltage range of 2.3V to 5.5V. It has low quiescent current and low dropout voltage, providing improved system performance. Furthermore, it has built-in features such as thermal shutdown, under-voltage lockout, and over-temperature protection, making it ideal for use in portable electronic products. All these features make this device the perfect solution for powering low voltage systems.