MIC5255-2.7BM5

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

The MIC5255-2.7BM5 is a fixed positive low-dropout (LDO) linear regulator manufactured by Micrel Inc., now part of Microchip Technology. It provides a precise 2.7V output with an initial accuracy of ±1%. The device operates within an input voltage range of 2.7V to 6.0V and delivers up to 150mA of output current. Key electrical characteristics include a maximum dropout voltage of 0.25V, a typical ground current of 90µA, and ultra-low output noise of 30µV(rms). It is housed in a compact SOT-23-5 package and supports ceramic output capacitors for stability.

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

• Ultra-low output noise optimized for RF applications
• Stability with small ceramic output capacitors
• High output accuracy with ±1% initial tolerance
• Logic-compatible enable pin for zero-off-mode current

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

• RF circuits requiring clean voltage sources
• Battery-operated handheld devices
• Portable consumer electronics
• Wireless communication modules

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

Verify the manufacturer designation on the component marking, as Micrel was acquired by Microchip Technology. Confirm the specific suffix indicates the standard SOT-23-5 package rather than alternative variants. Ensure the sourcing channel provides traceable documentation consistent with original equipment manufacturer standards for quality assurance.

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

Select this component when low noise performance is critical for sensitive analog or RF sections. The 2.7V fixed output suits systems powered by single-cell lithium batteries or regulated rails. Verify that the load current does not exceed 150mA and that the input voltage remains within the specified operational range to maintain regulation and stability.

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

This part belongs to the MIC5255 family of µCap CMOS LDO regulators designed for efficiency and precision. The series is characterized by its ability to operate with minimal external components while maintaining high power supply rejection ratios. It serves as a dedicated power management solution for space-constrained portable applications.

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

MIC5255-2.7BM5TR

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

What type of output capacitor is required for stability?

The MIC5255 is designed to be stable with low-value ceramic output capacitors, which helps reduce board space and component cost.

How does the enable pin function?

The logic-compatible enable pin allows the device to be placed into a zero-off-mode state, drawing no current when disabled.