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AP7351D-33FS4-7B

AP7351D-33FS4-7B Description

The AP7351D-33FS4-7B is a high-performance linear voltage regulator designed by Diodes Incorporated. This regulator is part of the AP7351 series and offers a fixed output voltage of 3.3V with a maximum output current of 150mA. It is designed for surface-mount applications and comes in a 4-lead DFN package, making it suitable for compact and space-constrained designs. The regulator operates with an input voltage range up to 5.5V and features a low dropout voltage of 0.35V at 150mA, ensuring efficient power conversion even at low input-to-output voltage differentials.

AP7351D-33FS4-7B Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for powering a wide range of electronic devices and circuits.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 150mA, the AP7351D-33FS4-7B ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
• Low Quiescent Current: The regulator features an ultra-low quiescent current of just 1 µA, making it suitable for battery-powered and low-power applications.
• High PSRR: A Power Supply Rejection Ratio (PSRR) of 60dB at 1kHz ensures minimal noise and ripple on the output voltage, contributing to cleaner power supply for sensitive analog circuits.
• Enable Control: The regulator includes an enable function, allowing for dynamic control of the output voltage, which can be useful for power sequencing and power-saving modes.
• Over Current Protection: Built-in over current protection safeguards the regulator and connected circuits from damage due to excessive current, enhancing reliability and robustness.
• Compliance and Packaging: The AP7351D-33FS4-7B is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It is available in a tape and reel package, facilitating easy handling and automated assembly processes.

AP7351D-33FS4-7B Applications

The AP7351D-33FS4-7B is well-suited for a variety of applications where a stable, low-noise power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering microcontrollers, sensors, and other low-power components in devices such as smartphones, tablets, and IoT devices.
• Industrial Applications: Suitable for powering analog circuits, signal conditioning modules, and other precision electronics that require a clean and stable power supply.
• Battery-Powered Devices: The low quiescent current and low dropout voltage make it an excellent choice for battery-operated devices, where maximizing battery life is crucial.
• Medical Devices: The regulator's high PSRR and low noise performance make it suitable for medical equipment where precision and reliability are paramount.

Conclusion of AP7351D-33FS4-7B

The AP7351D-33FS4-7B is a versatile and high-performance linear voltage regulator that offers a combination of low dropout voltage, low quiescent current, and high PSRR. These features make it an ideal solution for a wide range of applications, particularly in consumer electronics, industrial, and medical devices. Its compact 4-lead DFN package and surface-mount design ensure it can be easily integrated into modern, space-constrained designs. With its enable control and over current protection, the AP7351D-33FS4-7B provides additional flexibility and reliability, making it a standout choice in the competitive landscape of linear voltage regulators.