PMIC - Voltage Regulators - Linear

The MIC5306-2.6YD5-TR is a low-dropout (LDO) linear voltage regulator offering a precise 2.6V output. It is designed with very low quiescent current and low noise output, ideal for battery-powered applications such as cellular phones, PDAs and portable medical devices. The flexibility of the MIC5306-2.6YD5-TR provides designers with the ability to continue the life of their product platform and makes it an attractive solution for both cost-sensitive and size-constrained applications.

Its wide input voltage range of 1.5V to 7.0V ensures efficient results for applications powered by various sources such as a single Li-ion cell, alkaline/NiMH cells, rechargeable batteries, or switched power supplies. Its low quiescent current makes the MIC5306-2.6YD5-TR ideal for battery-powered applications. The MIC5306-2.6YD5-TR can also remain active in burst operation, extending the battery life with their low ground current of less than 500nA.

The MIC5306-2.6YD5-TR utilizes a low-noise, open-drain feature. With its Fast Transient Response (FTR) and high Power Supply Rejection Ratio (PSRR) of 76dB, this LDO linear voltage regulator provides better noise performance over a wide input voltage range. The MIC5306-2.6YD5-TR is also comprised of other features such as current limit and thermal-shutdown protection.

Working Principle

The linear voltage regulator works by taking a DC supply voltage, also known as an input voltage. This is then fed through a series of components such as transistors, diodes, and resistors, creating a feedback loop. This loop regulates the output voltage, allowing it to stay constant even as the input voltage changes. Linear regulation works well with analog circuits, as the voltage can be regulated to any level between the input voltage and ground. This allows for the use of a single supply voltage to have several different logic levels at different points in the circuit.

The MIC5306-2.6YD5-TR is designed to provide a constant 2.6V output regardless of any changes in the input voltage. The output voltage is monitored and controlled by the internal reference voltage. As the input voltage or load conditions change, the output voltage is adjusted in order to remain constant due to the precision internal calibration of the MIC5306-2.6YD5-TR.

Application Fields

The MIC5306-2.6YD5-TR is ideal for use in many battery-powered applications. Its low quiescent current and current limit protection make it an attractive choice for applications such as cell phones and portable medical devices. Additionally, due to its low voltage output and FTR, this device is well suited for power management within portable devices utilizing high levels of RF. Furthermore, the MIC5306-2.6YD5-TR is suitable for use in automotive applications such as car stereos, navigation systems, and entertainment systems where a high level of noise immunity is required for reliable operation.

With its wide input voltage range and fast transient response, the MIC5306-2.6YD5-TR is a suitable solution for power management in a variety of battery-powered applications. Additionally its other features make it well suited for use in areas where noise immunity is essential, such as automotive systems.