BD90GA3WEFJ-E2

PMIC - Voltage Regulators - Linear

BD90GA3WEFJ-E2 voltage regulator is a linear regulator integrated circuit (IC) primarily used to provide a stable voltage output. As it has a low drop-out voltage, it is able to maintain a steady output even with low input supply voltage. With an adjustable output voltage and low drop-out voltage, BD90GA3WEFJ-E2 voltage regulator makes an ideal regulator in battery-based application, such as mobile phones, digital cameras and other handheld devices.

Application Field

BD90GA3WEFJ-E2 can be used in many different applications. It is commonly used as a power supply regulator, providing stable output voltage and inducing low energy losses to maintain a steady output voltage. It is capable of supplying relatively larger output currents, up to as much as 1A. It is also capable of driving multiple regulators simultaneously, allowing it to provide stable and low power usage solutions for battery-based applications. Additionally, the adjustable output voltage of BD90GA3WEFJ-E2 can be set on any voltage between 1.25V to 5.5V, and makes it an attractive option for a wide variety of voltage regulation solutions.

Working Principle

The working principle of BD90GA3WEFJ-E2 is based on the linear voltage regulator. A linear voltage regulator works by sinking or supplying current from the output side of the regulator, depending on the demand of the circuit. In comparison to switching regulation, linear regulation is relatively slow and inefficient as majority of the current passes through the pass device. However, it provides greater stability and lower noise which is more suitable for adjustable voltage output applications.

The BD90GA3WEFJ-E2 voltage regulator works by using the inner power MOSFET to switch the voltage regulator ON and OFF. Whenever the voltage of the input is greater than the output, the power MOSFET is activated, sinking current from the output side. This has the effect of reducing the output voltage, while being able to maintain the same current level. On the other hand, when the voltage of the input is lower than the output, the power MOSFET is deactivated, enabling the output voltage to be increased. This ensures stable voltage output and current output, allowing BD90GA3WEFJ-E2 to be used for a wide range of applications.

Conclusion

BD90GA3WEFJ-E2 voltage regulators belong to the category of PMIC - Voltage Regulators - Linear. It is a low drop-out regulator typically used for power supply regulation and battery-based applications. With its adjustable output voltage, low drop-out voltage, and stable output current, BD90GA3WEFJ-E2 is a great regulator for mobile devices and digital cameras. And with its working principle based on linear regulation, BD90GA3WEFJ-E2 can provide greater stability and lower noise for applications demanding a precise voltage output.