LT1185IT#PBF

LT1185IT#PBF Application Field and Working Principle

The LT1185IT#PBF is a high performance low dropout linear voltage regulator that is designed for low current industrial and automotive use. It is capable of providing up to 900mA of current, and features a wide input voltage range from 2.5V to 18V, and an output voltage range from 1.2V to 13.2V. It has a very low quiescent current of only 2mA, and is capable of operating at high temperatures up to 225°C.

The LT1185IT#PBF is an ideal choice for applications such as distributed power architecture and power management of embedded systems. It is also suitable for a range of automotive systems such as dashboards, display lighting, and engine control. It can also be used in medical systems such as medical equipment, patient monitors, imaging equipment, and infusion pumps.

Working Principle

The LT1185IT#PBF is a precision low dropout linear voltage regulator. Its linear topology utilizes a high gain error-amplifier that maintains the output voltage over a wide temperature range and load variations. The error-amplifier’s output is compared to an external reference voltage, and the difference is amplified to drive the power FET switch. The FET provides the current for the output voltage. The LT1185IT#PBF features a programmable current limit and reverse current protection, and also has an enable feature that allows the system to be powered down when not in use.

Conclusion

The LT1185IT#PBF is an ideal linear voltage regulator designed for low current applications. It features a wide input voltage range, a very low quiescent current, and is capable of operating at high temperatures. It is suitable for a range of automotive, distributed power architecture, and medical applications. Additionally, its robust design offers protection against overloads, reverse current and short-circuits, as well as programmable current limit, overtemperature protection and enable/disable features.