LT1108CS8-12#PBF

LT1108CS8-12#PBF is a DC DC switching regulator from the PMIC (Power Management IC) voltage regulators family, which is widely used in low-cost, high-performance step-down regulating applications. Compared to traditional linear regulators, this device has superior power conversion efficiency, faster transient response and is more cost-effective.

Application Field

The LT1108CS8-12#PBF device is primarily targeted to applications that need to switch high input voltages from up to 10V down to 12V. It is widely used in a variety of fields, such as industrial and automotive electronics, radio communications and medical equipment. Its main applications include linear LED driver circuits, digital power supplies, network power regulators and battery charging solutions.

Working Principle

The LT1108CS8-12#PBF operates in a buck or step-down mode. It works by switching the input voltage into an inductor, stored in a capacitor, then fed through a regulated output stage to the output. The voltage is monitored by the regulator, which will adjust the switch duty cycle so that the output remains within specified limits.

When the input voltage is greater than the output voltage, the LT1108CS8-12#PBF monitors the output signal, comparing it to the reference voltage. It will then pulse the switch on and off to maintain the regulation. The pulse width modulated signal is then inverted, rectified and filtered to provide a smooth DC voltage.

The LT1108CS8-12#PBF also has a built-in thermal protection circuit which will shut down the regulator when the temperature rises too high, protecting against short circuits and overtemperature conditions. It also has current-limiting and short-circuit protection to protect the device from being overloaded.

Conclusion

The LT1108CS8-12#PBF device is a great solution for applications requiring step-down conversion. Its high efficiency and fast response make it ideal for industrial and automotive electronics, radio communications and medical equipment applications. Its built-in protection and current limiting functions make the device safe and reliable.