S-1172B49-E6T1G

Introduction

The S-1172B49-E6T1G is a low dropout (LDO) linear voltage regulator device specifically designed to provide an excellent power supply solution for low voltage applications. The device has over-voltage protection, under-voltage protection, short-circuit protection, inrush current limit and thermal shutdown protection. It also has been designed for various types of loading requirements, making it very reliable for its containment purpose.

Application Field

The S-1172B49-E6T1G is mainly used in applications such as portable battery-operated devices and other low voltage power supply solutions, where a stable voltage output is required. Some application fields are digital cameras, PDAs, GPS, digital audio players, MP3 players, mobile digital TVs, and video recorders. The device can also be used in applications where there is a need to extend the life of the system so that it can be used in harsher conditions.

Working principle

The S-1172B49-E6T1G works on the principle of linear voltage regulation. It is constructed of two main pieces, a control circuit and an output stage. The control circuit is comprised of a bandgap reference voltage generator, voltage comparator, driver, current sensing transistors and temperature sensing circuit. This circuit is responsible for providing a stable and decrease voltage output to the system. The output stage consists of a power switch, output coupling capacitors, current limit resistor and voltage regulation circuit.

The control circuit works by first detecting the output voltage via the voltage comparator. When the voltage drops below the reference voltage, the voltage comparator will activate the power switch. This will result in the current flow through the power switch to the output and the reference voltage being maintained. The current limit resistor will then detect the current flow through the switch and regulate it to prevent any sudden transient current conduction, while the voltage regulation circuit monitors the output voltage and ensures it is maintained at the right level.

Conclusion

The S-1172B49-E6T1G is a linear voltage regulator device, specifically designed to supply stable voltage output in low voltage applications. It has a range of protection features such as temperature, short-circuit, over-voltage and under-voltage protections. The device can be used for battery-operated systems, as well as applications where the system needs to be able to operate in harsher conditions. The device also works on the principle of linear voltage regulation, making it a reliable and highly efficient power supply solution.