Introduction

The SPX29302T5-L is a low noise, low dropout linear regulator designed for high current applications where extremely low noise is required and ultra-low quiescent current is a key factor. It belongs to the Linear Voltage Regulator category of PMICs (Power Management Integrated Circuits).

Application Field

The SPX29302T5-L is especially suitable for the applications where size and weight of the system design is particularly critical and light load currents are relatively small, such as mobile phones, notebooks, battery-powered equipment and others. Furthermore, due to its low noise and low dropout voltage these regulators are ideal for supplying analog circuits, precision amplifiers, and other sensitive loads. Its built-in protection and wide input voltage range makes it perfect for automotive applications.

Working Principle

The SPX29302T5-L is a low dropout regulator using a double-pole, fast response current setting for ultra-low noise operation. The current setting pin is used to set the output current of the regulator. A minimum setting of 1 percent of the regulated output current is possible with the presence of hysteresis.The SPX29302T5-L can provide up to 300mA of current output with ultra-low noise. It has an operating supply voltage range of 3.2V to 32V and can withstand input transients up to 40V. It is designed to protect the output voltage against over voltage, load dump and short circuit conditions. Moreover, it provides thermal shutdown protection to prevent the device from overheating.

The SPX29302T5-L also has an integrating mode control which allows the user to switch between integrated and non-integrated regulation modes. In integrated mode, the regulator\'s output voltage is dependent on the current setting pin, while in non-integrated mode, the output voltage is independent of the current setting pin. This feature is especially useful for automotive applications, where wide input voltage margin is needed.

Conclusion

The SPX29302T5-L is a low noise, low dropout linear regulator designed for high current applications where ultra-low noise and quiescent current are a key factor. It is especially suitable for mobile phones, notebooks, battery-powered equipment, automotive applications and other small-power devices. It is able to provide up to 300mA of current output with ultra-low noise and protection against over voltage, load dump and short circuit conditions. In addition, the integrated mode control feature provides flexibility in voltage regulation. Finally, the SPX29302T5-L is categorized under Linear Voltage Regulators of PMICs.