RT9167-45GB

PMIC - Voltage Regulators - Linear

The RT9167-45GB is a linear voltage regulator chip, designed and manufactured by Richtek Technology Corp. It is designed to be a low quiescent current, low dropout and low power supply regulator, which features low noise and is stable over a wide temperature and load current range. It is suitable for battery operated systems.

The RT9167-45GB regulator consists of an error amplifier and a power N-channel MOSFET, to regulate output voltage accurately. It also features low input, output and dropout voltage, making it suitable for typical battery-powered applications. The output voltage is typically adjustable from 2.2V to 5.5V, dependent on the selected version. Other features include a maximum output current of 900mA, an operating temperature range from -40℃ to 125℃, and a total power dissipation of 1.2W, with temperatures less than 100°C.

This regulator is available in two versions. The first version has an adjustable output voltage, while the second version has a fixed output voltage of 5.0V. The main difference between the two versions is that the adjustable version can be set to a specified output voltage, while the fixed version has a fixed output voltage. The regulator can also be configured for active-high or active-low enable signals.

The RT9167-45GB operates by using an internal error amplifier (EA) to regulate output voltage. The EA is also connected to an N-channel MOSFET, which acts as a switch to control the output voltage. The EA will detect any change in the output voltage and will adjust the voltage as necessary. This type of linear regulator is very reliable, as it is capable of regulating the output voltage very accurately.

This voltage regulator is widely used in many battery powered applications, such as battery powered cell phones and portable media players. It is also suitable for use in portable medical equipment, digital cameras, and power management modules. Additionally, the RT9167-45GB is also used in automotive, industrial and consumer applications, due to its versatile design and low power requirements.

In conclusion, the RT9167-45GB is a low quiescent current, low dropout and low power supply linear voltage regulator chip, which is suitable for battery powered applications. It features adjustable and fixed output voltage options and has a wide operating temperature range, allowing for reliable operation in many different types of applications.