MIC39100-1.8BS

A linear voltage regulator, or linear regulator, is an integrated circuit that provides a constant output voltage regardless of changes in the load or input voltage. The MIC39100-1.8BS is an ultra-low dropout (LDO), linear regulator designed to provide up to 1.8A of output current with a maximum dropout voltage of 300mV. The MIC39100-1.8BS provides excellent line and load regulation with a low noise output of 20μVRMS. With low quiescent current and short-circuit protection, the MIC39100-1.8BS offers designers a cost effective alternative to other linear regulators.

Application Field

The MIC39100-1.8BS can be used in a variety of applications requiring a low dropout voltage regulator. It is suitable for use in applications such as post-regulation on switch-mode power supplies, standby regulation in consumer electronics, and battery-powered electronics. It is also ideal for those applications where very high current is needed with a low dropout voltage. The MIC39100-1.8BS has been designed for use in customer modem and wireless LAN devices, broadband customer premises equipment, and industrial and automotive environments.

Working Principle

The MIC39100-1.8BS uses a control circuitry to control the output voltage. The output voltage is adjusted using an external voltage divider which gives the linear regulator a signal that is proportional to the output voltage. This signal is compared to the signal from an internal reference voltage and any difference is used to adjust the output voltage. The MIC39100-1.8BS also has a ‘Virtual Voltage’ feature which is specifically designed to accurately regulate the output voltage with rapidly-changing load conditions. The Virtual Voltage feature allows the linear regulator to maintain a constant output voltage with changes in load current in a negligible amount of time.

Features and Benefits

The MIC39100-1.8BS offers a wide range of features and benefits. It has a low quiescent current of just 20μA and provides ultra-low dropout voltage performance with a maximum of 300mV. The MIC39100-1.8BS also features over-temperature protection, current limit protection and short circuit protection that all work together to provide safe and reliable operation. The regulator also has an adjustable output voltage range of 0.8V to 3.6V with an output current of 1.8A. The MIC39100-1.8BS also has excellent line and load regulation with a low output noise of 20μVRMS. This low noise makes it ideal for use in noise-sensitive systems where high levels of RF noise can cause problems.

Conclusion

The MIC39100-1.8BS is an ideal linear low dropout regulator for applications requiring a high output current with an ultra-low dropout voltage. Its features, such as its low quiescent current and short circuit protection, make it a cost-effective alternative to other linear regulators. With its wide range of features and benefits, the MIC39100-1.8BS is the perfect choice for designers who need an efficient, reliable, low dropout voltage regulator.