UNION SEMICONDUCTOR INTERNATIONAL LIMITED Tariff Inquiry

UM1530DA-18

UM1530DA-18 Description

The UM1530DA-18 is a high-performance linear voltage regulator designed by Union Semiconductor International Limited. This regulator is part of the UM1530 series and offers a fixed output voltage of 1.8V with a maximum input voltage of 6V. It is designed to provide a stable output current of up to 300mA, making it suitable for a variety of low-power applications. The regulator features a low quiescent current of just 1.5 µA, which is ideal for battery-powered devices and other applications where power consumption must be minimized.

The UM1530DA-18 boasts a high power supply rejection ratio (PSRR) ranging from 56dB at 100Hz to 42dB at 1kHz, ensuring excellent noise filtering and stable output voltage even under varying input conditions. With a maximum dropout voltage of 0.33V at 200mA, this regulator can maintain high efficiency even when the input voltage is close to the output voltage. The device is packaged in a surface-mount format, specifically in a tape and reel (TR) configuration, which is ideal for automated assembly processes.

UM1530DA-18 Features

• Low Quiescent Current: The UM1530DA-18 features an extremely low quiescent current of 1.5 µA, which is crucial for applications requiring minimal power consumption.
• High PSRR: The regulator offers a high power supply rejection ratio, ranging from 56dB at 100Hz to 42dB at 1kHz, ensuring a stable output voltage and effective noise filtering.
• Fixed Output Voltage: The regulator provides a fixed output voltage of 1.8V, making it suitable for applications requiring a consistent power supply.
• High Efficiency: With a maximum dropout voltage of 0.33V at 200mA, the UM1530DA-18 maintains high efficiency even at low input-to-output voltage differentials.
• Protection Features: The regulator includes over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential damage.
• Surface Mount Packaging: The device is available in a surface-mount tape and reel (TR) package, which is ideal for automated assembly and integration into compact designs.
• Compliance: The UM1530DA-18 is REACH unaffected and RoHS compliant, meeting the stringent environmental and safety standards of the electronics industry.

UM1530DA-18 Applications

The UM1530DA-18 is well-suited for a variety of applications where low power consumption and stable voltage regulation are critical. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current makes this regulator ideal for portable devices, such as smartphones, tablets, and IoT devices, where battery life is a key consideration.
• Low-Power Electronics: The regulator's high efficiency and low dropout voltage make it suitable for low-power electronic systems, such as sensors, microcontrollers, and embedded systems.
• Noise-Sensitive Applications: The high PSRR ensures that the regulator can effectively filter out noise from the power supply, making it suitable for applications where signal integrity is crucial, such as in audio and communication equipment.

Conclusion of UM1530DA-18

The UM1530DA-18 is a robust and efficient linear voltage regulator that offers significant advantages over similar models. Its low quiescent current, high PSRR, and fixed output voltage make it an excellent choice for a wide range of low-power applications. The inclusion of over-current and over-temperature protection features ensures reliable operation, while the surface-mount packaging and compliance with industry standards make it easy to integrate into modern electronic designs. Whether used in battery-powered devices, low-power electronics, or noise-sensitive applications, the UM1530DA-18 provides a reliable and efficient power solution.