UM1550DB-30

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The UM1550DB-30 is a linear voltage regulator IC from Union Semiconductor International Limited, providing a fixed positive output of 3.0V with a maximum load current of 300mA. It operates within an input voltage range up to 8V and features low quiescent current consumption for energy efficiency. The device is housed in a compact 4-XDFN (1x1) package, suitable for space-constrained designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Fixed positive output voltage regulation
• Low quiescent current operation
• High input voltage capability
• Compact surface-mount packaging

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronics
• Embedded systems requiring stable low-voltage rails
• IoT devices with strict power constraints

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'DB-30' confirms the 3.0V fixed output and XDFN package during procurement. Ensure compatibility with the host board's thermal requirements and input voltage limits. Confirm manufacturer authenticity through authorized distributors to avoid counterfeit components affecting long-term reliability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 3.0V rail is required with minimal external components. Consider the 300mA current limit and 8V maximum input voltage against system demands. The low quiescent current makes it suitable for battery-operated applications where standby power loss must be minimized compared to standard regulators.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the UM1550 series of high-input-voltage, low-quiescent-current linear regulators manufactured by Union Semiconductor. The series offers various fixed output voltages, with the DB-30 variant specifically designated for 3.0V output in a small form factor package designed for modern compact electronic assemblies.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check for direct pin-compatible alternatives from Union Semiconductor or other manufacturers offering similar 3.0V LDOs in 4-XDFN packages. Verify that replacement parts meet the same 300mA output current and 8V input voltage specifications to ensure circuit functionality remains unchanged.