MIC5256-2.9BM5

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

The MIC5256-2.9BM5 is a fixed positive low-dropout (LDO) voltage regulator manufactured by Micrel Inc., providing a stable 2.9V output. It operates within an input voltage range of 2.7V to 6.0V and delivers a maximum output current of 150mA. The device features a typical dropout voltage of 135mV at full load and maintains high precision with ±1% initial accuracy. Designed for ultra-low-noise applications, it supports stability with ceramic capacitors and includes a noise bypass pin. The component is housed in a thin SOT-23-5 package with dimensions of 2.9mm length and 1mm height, suitable for space-constrained designs.

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

• Ultra-low output noise performance optimized for RF applications
• High output accuracy with ±1% initial tolerance
• Stability ensured with low-cost ceramic output capacitors
• Noise reduction capability via dedicated bypass pin

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

• RF circuit power supply conditioning
• Portable handheld electronic devices
• Battery-powered systems requiring clean voltage rails

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

Verify the manufacturer origin, as Rochester Electronics may distribute this part. Confirm RoHS compliance status, as some listings indicate non-compliance. Ensure the package matches the specified Thin SOT-23-5 form factor. Check for lead-free certification if required by your assembly process. Validate the specific output voltage variant against the datasheet to avoid confusion with other MIC5256 models.

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

Select this regulator when low noise and high accuracy are critical for sensitive analog or RF circuits. The 150mA current rating suits moderate load requirements. Consider the thin SOT-23 package for PCB space limitations. Verify that the input voltage remains above the minimum threshold of 2.7V during operation. Ensure thermal management aligns with the expected power dissipation under load conditions.

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

The MIC5256 series belongs to Micrel's family of efficient CMOS LDO regulators designed for portable electronics. It shares architectural similarities with the MIC5255 but offers specific output voltage options. The series emphasizes low ground current and fast transient response. This particular model provides a fixed 2.9V output, distinguishing it from adjustable variants or other fixed voltage versions in the lineup.

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

MIC5255-2.9BD5 serves as a functional substitute within the same product family. Both components share identical electrical characteristics and package types. Verify pin compatibility before substitution. Ensure the replacement source meets the same quality standards. Cross-reference datasheets to confirm minor manufacturing differences do not impact application performance.