MIC5219-2.8YML-TR Integrated Circuits (ICs)

Introduction

The MIC5219-2.8YML-TR is a high output voltage, ultra low quiescent current linear regulator from Micrel. It is ideal for battery-powered and mobile applications and provides the low-noise, low power consumption demanded by today’s portable electronics. This compact linear regulator includes an advanced two-terminal current limit and overtemperature protection to ensure reliable operation under all conditions.

Applications

The MIC5219-2.8YML-TR can be used in a variety of applications such as portable device application, battery-powered application and mobile device applications. It can be used to regulate a wide range of input voltages, making it suitable for use in mobile devices and other applications where battery life is important. It is also frequently used in communications equipment, automotive applications and in systems where low quiescent current and high output current is required.

Working Principle

The MIC5219-2.8YML-TR is a high-efficiency, current-mode, linear regulator. It uses an internal current-limit circuit to keep the load current within limits that prevent breakdown. In addition, by minimizing the amount of current that is supplied to the output, the MIC5219-2.8YML-TR is able to deliver a higher voltage than its rated output voltage. The MIC5219-2.8YML-TR also includes an internal over-temperature shutdown circuit, which is activated when the temperature of the regulator exceeds a predetermined level.

The MIC5219-2.8YML-TR operates on a two-terminal current limit principle, where one terminal is connected to the power supply, and the other is connected to the load. When the load current is greater than the current limit set by the internal circuit, the regulator will turn off, thus protecting the circuit from further current overload. In addition, as the input voltage changes, the output voltage will also change, but it can be adjusted so that the output voltage is maintained within a predetermined range.

Conclusion

The MIC5219-2.8YML-TR is a high-efficiency linear regulator ideal for use in battery-powered and mobile applications. It features low quiescent current, high output current and an advanced two-terminal current limit and overtemperature protection to ensure reliable operation under all conditions. Its two-terminal current limit principle also ensures that the output voltage remains within a predetermined range, regardless of changes in the input voltage.