UNION SEMICONDUCTOR INTERNATIONAL LIMITED Tariff Inquiry

UM1540DA-30

UM###1540DA-30 Description

The UM1540DA-30 is a high-performance, low quiescent current linear regulator designed for power management applications. Manufactured by Union Semiconductor International Limited, this device offers a fixed output voltage of 3V with a maximum input voltage of 6V. It is capable of delivering up to 300mA of output current, making it suitable for a wide range of electronic devices that require stable and efficient power supply solutions. The UM1540DA-30 features a low quiescent current of 1.5 µA, which is ideal for battery-operated devices and other applications where power efficiency is critical.

UM1540DA-30 Features

• Low Quiescent Current: With a quiescent current of only 1.5 µA, the UM1540DA-30 is highly efficient, minimizing power consumption in standby mode. This feature is particularly beneficial for battery-powered devices, extending their operational life.
• High PSRR: The Power Supply Rejection Ratio (PSRR) ranges from 56dB at 100Hz to 42dB at 1kHz, ensuring excellent noise rejection and stable output voltage even in noisy environments.
• Fixed Output Voltage: The UM1540DA-30 provides a fixed output voltage of 3V, simplifying design and ensuring consistent performance across various applications.
• Over Current and Over Temperature Protection: Built-in protection features safeguard the device against overcurrent and overtemperature conditions, enhancing reliability and longevity.
• Enable Control Feature: The enable control feature allows for easy control of the regulator's operation, providing flexibility in power management and system design.
• Surface Mount Packaging: The UM1540DA-30 is available in a surface mount, package making it suitable for compact and high-density PCB designs.
• RoHS Compliant: The device meets RoHS compliance, ensuring it is environmentally friendly and suitable for use in a wide range of applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.33V at 200mA, the UM1540DA-30 maintains high efficiency even at low input-to-output voltage differentials.

UM1540DA-30 Applications

The UM1540DA-30 is ideal for a variety of applications where low power consumption and high efficiency are required. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and high efficiency make it suitable for portable electronics, such as smartphones, tablets, and wearable devices.
• IoT Devices: The UM1540DA-30's low power consumption and high PSRR make it an excellent choice for Internet of Things (IoT) devices that require stable power supply and minimal energy consumption.
• Medical Devices: The device's reliability and protection features make it suitable for medical equipment where consistent power supply and safety are paramount.
• Consumer Electronics: The UM1540DA-30 can be used in a variety of consumer electronics, such as smart home devices, where efficient power management is essential.

Conclusion of UM1540DA-30

The UM1540DA-30 is a versatile and efficient linear regulator designed to meet the demands of modern power management applications. Its low quiescent current, high PSRR, and fixed output voltage make it an ideal choice for battery-operated devices and other applications where power efficiency and stability are critical. The built-in protection features and enable control further enhance its reliability and flexibility. With its surface mount packaging and RoHS compliance, the UM1540DA-30 is a reliable and environmentally friendly solution for a wide range electronic of devices.