RT9164A-18GLR

RT9164A-18GLR : PMIC - Voltage Regulators - Linear

The RT9164A-18GLR is a voltage regulator prodcuct manufactured by Richtek Technology Corporation, an analog semiconductor vendor.It is designed to be compatible with a wide range of power management applications and has a host of features that make it an ideal choice for many operations.

Applications

The RT9164A-18GLR is a voltage regulator that follows the Linear voltage regulator architecture, i.e., it enables the conversion of a given DC input voltage within a range directly into the desired DC output voltage - thus the term \'linear regulator\'.The RT9164A-18GLR is able to provide from 1.5V to 5.5V output voltages which makes it an ideal choice for use in battery powered systems, portable electronics, computer power supplies and various other applications.

Features

• Small µm 8-Pin DFN Package
• Provides Exceptional Accuracy over Operating Temperature
• Switching Frequency up to 1.0MHz
• Functionally complete with low parts count: The device includes an error amplifier, a reference buffer and a PWM control circuit in one 8-pin compact package.
• Current Limit Function: The device includes a 3rd current limit circuit to provide an additional level of safety.
• Shutdown Mode: The device is easily turned on and off with just an input signal.

Working Principle

The RT9164A-18GLR functions by comparing the reference voltage with the output voltage to ensure a constant output voltage even if the load current fluctuates or if the input voltage is increasing or decreasing. The linear regulator is able to provide a constant output voltage by taking the difference between the reference voltage and the output voltage and adjusting the output voltage with the help of a power transistor to create a difference between the two. When the two become equal, the power transistor stops responding.

The reference voltage is created through the use of a voltage divider which is determined by predetermined resistors. This allows the output voltage to be adjusted by varying the voltage on one of the resistors.

The RT9164A-18GLR also features a shutdown mode which enables the user to easily switch it on and off with an input signal. Additionally, the device includes a 3rd current limit circuit, further increasing its utility and providing an additional level of safety.

Conclusion

The RT9164A-18GLR from Richtek Technology Corporation is a voltage regulator product compatible with a wide variety of power management applications. Its features enable it to provide exceptional accuracy over operating temperatures, a high switching frequency of up to 1MHz, and easy shutdown mode with an input signal. With its small 8-pin DFN package, current limit function, and low parts count, it is an ideal choice for many operations.