Fremont Micro Devices

FT533DA

FT533DA Description

The FT533DA is a linear voltage regulator designed by Fremont Micro Devices Ltd, offering a fixed output voltage of 1.8V and capable of delivering up to 400mA of current. This regulator is housed in a compact SOT23-5 package, making it suitable for surface mount applications. Despite its small size, the FT533DA boasts a quiescent current of only 65 µA, ensuring high efficiency even at low load conditions. The regulator is designed to operate with an input voltage range up to 6V and features a dropout voltage of 0.65V at 400mA, which is typical for its class. It also includes an enable control feature and over-current protection, enhancing its reliability and versatility. The FT533DA is classified under ECCN EAR99 and HTSUS 8542.39.0001, with a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to ambient conditions.

FT533DA Features

• High Efficiency: With a quiescent current of 65 µA, the FT533DA ensures minimal power consumption even under no-load conditions.
• Low Dropout Voltage: The regulator maintains a dropout voltage of 0.65V at 400mA, allowing it to operate efficiently even with a small difference between input and output voltages.
• Fixed Output Voltage: The FT533DA provides a stable 1.8V output, ideal for applications requiring a consistent power supply.
• Enable Control Feature: This feature allows users to control the regulator's operation, enhancing flexibility and power management.
• Over-Current Protection: Built-in over-current protection ensures the regulator's longevity and reliability, safeguarding against excessive current draw.
• Compact Design: The SOT23-5 package makes the FT533DA suitable for space-constrained designs, fitting seamlessly into modern electronic devices.
• Surface Mount Compatibility: Designed for surface mount technology, the FT533DA is easy to integrate into PCB designs and supports automated assembly processes.

FT533DA Applications

The FT533DA is well-suited for a variety of applications where a stable, low-voltage power supply is required. Its compact size and efficient operation make it ideal for:

• Portable Devices: Ideal for battery-powered gadgets where space and power efficiency are critical.
• Embedded Systems: Suitable for microcontroller and microprocessor-based systems that require a reliable 1.8V supply.
• Communication Equipment: Provides stable power for low-voltage components in communication modules and IoT devices.
• Consumer Electronics: Applicable in a range of consumer electronics where a fixed 1.8V supply is needed for optimal performance.

Conclusion of FT533DA

The FT533DA from Fremont Micro Devices Ltd is a robust and efficient linear voltage regulator designed to meet the demands of modern electronic systems. Its low quiescent current, low dropout voltage, and fixed output voltage make it a reliable choice for applications requiring a stable 1.8V supply. The inclusion of enable control and over-current protection further enhances its versatility and reliability. Despite being classified as obsolete, the FT533DA remains a valuable component for designers seeking a compact, efficient, and reliable power solution.