LF90ABV

LF90ABV application field and working principle

Based on the current linear regulator market, the LF90ABV Series is an adjustable voltage regulator designed for low noise, low quiescent current and wide load variations. It can provide excellent accuracy, low temperature coefficient, high ripple rejection and a wide output voltage range of 1.8V~11V. The LF90ABV series is ideal for products with strict power regulation requirements. It can be used in a wide variety of applications such as 4G mobile phones, IOT consumer electronics, industrial control, automotive, LED lighting, storage and computer systems.

Working Principle

The LF90ABV is a linear-type positive voltage regulator. It works by employing an external winding and a resistor on a low-noise linear base. During operation, the winding and resistor create an error voltage which is fed back to the base of the regulator to maintain a constant output voltage. This feedback mechanism allows the regulator to maintain a constant output voltage regardless of changes in input voltage or load variations.

The LF90ABV also has a built-in over-current protection circuit that protects it from damage due to overload or short-circuits. The overload protection activates if the load current exceeds a certain threshold and shuts down the output until the current returns to normal levels. This helps to ensure the safety of the device and prevent damage to other components.

Advantages

The LF90ABV series provides several advantages that make it ideal for many applications. It offers excellent accuracy, high ripple rejection and a wide output voltage range. It also has very low quiescent current and low noise capabilities. Additionally, it has a built-in overload protection circuit that helps to ensure the safety of the device and user.

The LF90ABV is also highly durable and reliable. It can handle a wide variety of loads and temperature variations without compromising performance or reliability. This makes it ideal for applications such as industrial or automotive control systems that require reliable performance in extreme environments.

Conclusion

The LF90ABV series is an adjustable voltage regulator that offers excellent accuracy, low temperature coefficient, and high ripple rejection, in addition to a wide output voltage range and low quiescent current. It also has a built-in safety circuit to protect against overloads and short-circuits. This makes it ideal for applications that require reliable performance in extreme environments.