FP4LULU009M

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Introduction

FP4LULU009M is a type of low-Voltage DC(LVDC) regulator. It is based on a low-voltage step-down switching regulator (buck converter), which has the advantage of high efficiency and low quiescent current. This device is mainly used to provide stable and regulated power for low-voltage microcontroller systems, and other devices requiring stable low-voltage power.

Application Field

FP4LULU009M is intended to be used as battery power to supply the power requirements of electronic devices. It is optimized for battery-powered applications due to its high efficiency and low quiescent current, making it an ideal regulator for mobile devices using Li-ion batteries. It is also suitable for powering cameras, sensors, LED drivers, and other similar electronic devices where low-Voltage power is required.

High Efficiency

The FP4LULU009M is capable of providing extremely high efficiency, up to 96%. This is achieved by using a low-voltage, high-current MOSFET switch and high-frequency switching technology. It also has a low quiescent current of only 15 μA, saving power and extending battery life. The device also has an integrated current sensing feature, which allows for an accurate output current control and improved efficiency under light load conditions.

Protection Features

The FP4LULU009M also offers protection features to help ensure the safety of the device and the user. It has an over-current protection (OCP) and an over-temperature protection (OTP) which will cut off the output current if the device is overloaded or overheated. Additionally, a reverse input voltage protection (RIP) is included to protect the IC from reverse polarity.

Working Principle

The working principle of the FP4LULU009M is based on a step-down switching regulator (buck converter). It utilizes an input voltage (Vin) and output voltage (Vout) to regulate the current supplied to the load. The buck converter consists of a high-side MOSFET switch connected to a low-side switch. When the high-side MOSFET is on, current will flow through the switch from Vin to Vout. When the low-side switch is on, current will be drawn from the output, thus providing power to the load. The duty cycle of the MOSFETs is controlled by a PWM signal, which is generated by the control logic within the IC. The duty cycle is then adjusted to regulate the output voltage to the desired level.

Conclusion

The FP4LULU009M is a low-Voltage DC regulator that provides a stable and regulated power supply for devices requiring low-Voltage power. Its low quiescent current and high efficiency make it well-suited for battery powered applications. It also provides protection features and current sensing capabilities to ensure safe operation and improved efficiency. Finally, its working principle is based on a versatile buck converter which allows for an accurate voltage regulation.

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