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UM1550DB-33

UM1550DB-33 Description

The UM1550DB-33 is a high-performance, low quiescent current linear voltage regulator designed by Union Semiconductor International Limited. This device is part of the UM1550 series and is optimized for applications requiring efficient power management and minimal power consumption. With a maximum input voltage of 8V and a fixed output voltage of 3.3V, the UM1550DB-33 is capable of delivering up to 300mA of output current. Its ultra-low quiescent current of 3.5 µA makes it an ideal choice for battery-powered devices and other applications where power efficiency is critical.

The regulator features a dropout voltage of 0.3V at 200mA, ensuring high efficiency even at low input-to-output voltage differentials. The device also offers excellent power supply rejection ratio (PSRR) performance, ranging from 56dB at 100Hz to 42dB at 1kHz, which helps in maintaining a stable output voltage under varying load conditions. The UM1550DB-33 includes over-current and over-temperature protection features, enhancing its reliability and robustness in demanding operating environments.

Packaged in a surface-mount configuration, the UM1550DB-33 is suitable for compact designs and automated assembly processes. It is available in tape and reel packaging, facilitating efficient manufacturing workflows. The device is REACH unaffected and RoHS compliant, ensuring it meets the stringent environmental and safety standards required by the electronics industry.

UM1550DB-33 Features

• Low Quiescent Current: The UM1550DB-33 boasts an ultra-low quiescent current of 3.5 µA, making it highly efficient for low-power applications.
• High PSRR: With a PSRR of 56dB to 42dB across the frequency range of 100Hz to 1kHz, the regulator effectively filters out noise from the input power supply.
• Fixed Output Voltage: The regulator provides a stable 3.3V output voltage, ensuring consistent performance in various applications.
• High Output Current: Capable of delivering up to 300mA of output current, the UM1550DB-33 can power a wide range of electronic devices.
• Low Dropout Voltage: A maximum dropout voltage of 0.3V at 200mA ensures high efficiency, even when the input voltage is close to the output voltage.
• Protection Features: Over-current and over-temperature protection enhance the reliability and safety of the device.
• Surface Mount Packaging: The surface-mount configuration and tape & reel packaging make it suitable for automated assembly and compact designs.
• Environmental Compliance: The UM1550DB-33 is REACH unaffected and RoHS compliant, adhering to environmental and safety standards.

UM1550DB-33 Applications

The UM1550DB-33 is well-suited for a variety of applications where power efficiency and stability are paramount. Its low quiescent current and high PSRR make it ideal for battery-powered devices, portable electronics, and IoT devices that require long operational life and minimal power consumption. The regulator's ability to deliver high output current and maintain a stable output voltage makes it suitable for microcontrollers, sensors, and other low-power electronic components.

Specific use cases include:

• Battery-Powered Devices: Ideal for applications such as smartphones, tablets, and wearables where minimizing power consumption is crucial.
• Portable Electronics: Suitable for portable audio devices, digital cameras, and other gadgets that require efficient power management.
• IoT Devices: Perfect for IoT sensors and modules that need to operate reliably on limited power sources.
• Microcontroller Power Supplies: Provides a stable power source for microcontrollers and other low-power embedded systems.

Conclusion of UM1550DB-33

The UM1550DB-33 is a versatile and efficient linear voltage regulator that stands out in its category due to its ultra-low quiescent current and high PSRR. Its ability to deliver a stable 3.3V output with minimal power loss makes it an excellent choice for applications where power efficiency is a priority. The inclusion of over-current and over-temperature protection features further enhances its reliability and robustness. With its surface-mount configuration and environmental compliance, the UM1550DB-33 is well-suited for modern, compact designs and automated manufacturing processes. Overall, the UM1550DB-33 offers a reliable and efficient power management solution for a wide range of electronic applications.