LP5904TMX-2.8/NOPB

LP5904TMX-2.8/NOPB Application Field and Working Principle

The LP5904TMX-2.8/NOPB is a low cost, ultralow quiescent current, very low dropout linear regulator for mobile devices. It was specifically designed for battery-powered electronics. This article will elucidate the application field tips and the mode of operation of the LP5904TMX-2.8/NOPB.

Application Field

The LP5904TMX-2.8/NOPB is a versatile linear PMIC designed to provide regulated power under a variety of conditions. This power management IC (PMIC) offers a low cost solution when a low dropout voltage regulator is required in battery-powered embedded applications. This regulator is suitable for hand-held applications, including cell phones, smartphones, tablets, smart watches, fitness trackers, and other consumer electronic devices such as Bluetooth speakers as well as for industrial applications.

It\'s appropriate for energy-critical consumer electronics and precision microcontrollers, as well as automotive and other applications. It is available in four versions with different output voltages: 1.8 V, 2.5 V, 2.8 V, and 3.3 V. It includes an adjustable bias current and an adjustable reset voltage to optimize the various system tolerances and requirements.

Working Principle

The LP5904TMX-2.8/NOPB is powered by a power supply or a battery, while its output voltage is regulated, enabling the device to draw just a predetermined amount of power during operation. The device can also be used to provide power to a system in sleep mode or in standby mode, drastically reducing power consumption. All these features make the LP5904TMX-2.8/NOPB a perfect solution for battery-operated mobile applications.

The regulator utilizes a linear regulation mechanism which works according to the principle of negative feedback and voltage regulation. The regulator input voltage is compared with an internal reference voltage, and an error signal is generated accordingly. This error signal is then amplified and sent to the pass element of the regulator which adjusts the output voltage according to the error signal. The regulator is designed for ultra-low quiescent current and very low dropout voltage and offers excellent transient response.

The LP5904TMX-2.8/NOPB features an adjustable bias current and an adjustable reset voltage, making it suitable for different system requirements and tolerances. Furthermore, it is also protected against short-circuit, over-temperature and reverse-voltage, increasing its safety and reliability.

Conclusion

The LP5904TMX-2.8/NOPB is a low-cost, ultra-low quiescent current, very low dropout linear regulator for mobile devices which offers an adjustable bias current and adjustable reset voltage for different system requirements and tolerances. It is perfect for energy-critical consumer electronics and precision microcontrollers, as well as automotive and other applications. Its linear regulation mechanism guarantees excellent transient response, and its protection features improve its reliability.