LTC3876EFE#PBF

PMIC - Voltage Regulators - Special Purpose

LTC3876EFE#PBF is a synchronous monolithic dual step-down switching regulator, which is suitable for battery-powered applications requiring 2.5V to 5.5V external voltage supplies. It is a complete power solution with special features, such as a very low quiescent current, programmable soft start and a wide input voltage range. Thus, it is widely used in modern electronic devices.

Application Field

Given its multiple special features, the LTC3876EFE#PBF is ideal for many battery-power application fields. It can be used in automotive and electro-vehicles, as well as in portable power applications. Its high efficiency and very low quiescent current makes it very effective for portable products demanding high performance. It is also suitable for powering digital platforms, such as microprocessors, ASICs, FPGAs, and other related digital devices. All devices powered from batteries require a converter to boost or step down the voltage to the required level.

Working Principle

The LTC3876EFE#PBF, like most DC-to-DC converters, works based on the switching regulator principle. This includes the three common blocks of any switch mode power supply: input, output, and control. In reference to the LTC3876EFE#PBF, the input and output are capacitors and inductors that provide low-pass filtering. The control loop produces the switching signal that determines on/off operation of the MOSFETs. The inductor transfers energy from the input to the output by creating an electrical field. The capacitor on the output side stores energy during the OFF time and discharges during the ON time. When the voltage on the REC pin drops, the PWM adjusts press rate and allows the inductor to discharge energy to the output.

The LTC3876EFE#PBF offers further features and features, such as an advanced, ultra-low quiescent current, input voltage regulation and soft-start. Furthermore, it includes very efficient synchronous rectification in both output channels and capacitor-free design with <50mΩ MOSFETs for improved efficiency.

Conclusion

In conclusion, LTC3876EFE#PBF is a powerful and versatile dual step-down switching regulator that is ideal for battery-powered applications requiring 2.5V to 5.5V external voltage supplies. It offers a wide range of special features, such as low quiescent current, programmable soft start and input voltage regulation, making it a perfect choice for numerous electronic devices. Based on the switching regulator principle, the LTC3876EFE#PBF works by creating electrical fields and storing energy in an output capacitor during OFF time. It is an ideal solution for many portable power applications and digital platforms.