MIC5305-2.85YD5-TR

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

The MIC5305-2.85YD5-TR is a fixed-output low-dropout linear regulator manufactured by Microchip Technology, providing a stable 2.85V output with a maximum continuous current of 150mA. It operates within an input voltage range of 2.25V to 5.5V and features a typical dropout voltage of 60mV at full load. The device incorporates a logic-compatible enable pin for zero-off-mode shutdown, drawing only 0.5µA in this state. It utilizes a thin SOT-23-5 surface-mount package and maintains stability using small ceramic capacitors.

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

• Ultra-low dropout performance ensures efficient power delivery from battery sources while minimizing heat generation.
• High power supply rejection ratio effectively suppresses noise and ripple across varying frequencies.
• Integrated thermal shutdown and current limit protection safeguard the circuit against overload conditions.

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

• Portable electronics requiring compact power solutions
• Cellular phones and mobile communication devices
• Personal digital assistants (PDAs)
• Fiber optic modules

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

Verify that the component matches the specified Microchip Technology manufacturer origin and the exact MIC5305-2.85YD5-TR part number. Confirm the physical package type corresponds to the thin SOT-23-5 configuration. Ensure the ordering suffix indicates the correct reel packaging format required for automated assembly processes.

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

Select this regulator when board space is constrained due to its ultra-thin SOT-23-5 footprint. It is suitable for applications demanding high accuracy and low quiescent current. Verify that the system input voltage remains within the 2.25V to 5.5V operational limits to ensure proper regulation and stability under all expected load conditions.

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

This component belongs to the MIC5305 family of µCap Ultra-Low Dropout LDO regulators. The series is characterized by its ability to operate stably with very small ceramic output capacitors, reducing overall bill of materials cost and board area. The specific model provides a fixed 2.85V output tailored for digital logic and peripheral power rails.

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

MIC5305-2.85BD5-TR

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

What is the minimum capacitance required for stable operation?

The MIC5305 requires an output capacitor of 1µF or greater to maintain stability, optimized for use with low-ESR ceramic chip capacitors.

How does the enable pin function affect power consumption?

Forcing the active-high enable pin low disables the regulator into a zero-off-mode state, reducing ground pin current to typically 0.5µA.