MIC5310-SMYML-TR

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

The MIC5310-SMYML-TR is a dual ultra-low dropout linear regulator from the MIC5310 family, manufactured by Microchip Technology. It integrates two independent 150mA LDOs within an 8-pin 2mm x 2mm MLF® package. The device operates with an input voltage range of 2.3V to 5.5V and provides fixed output voltages of 3.3V on VOUT1 and 2.8V on VOUT2. Key electrical characteristics include a maximum dropout voltage of 35mV at 150mA load, power supply rejection ratio exceeding 70dB at 1kHz, and ultra-low output noise of 30µVRMS. The quiescent current is 75µA per output, and it features thermal shutdown and current limit protection.

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

• Dual high-performance 150mA regulators integrated into a compact leadless package for space-constrained designs
• Ultra-low dropout voltage operation enabling efficient power delivery near the input rail
• High power supply ripple rejection and low output noise suitable for RF and noise-sensitive circuitry
• Independent active-high enable inputs allowing individual control of each regulator channel

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

• Mobile phones
• Portable media players
• Digital still and video cameras
• GPS receivers

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

Verify the specific ordering suffix SMYML corresponds to the required 3.3V/2.8V output configuration before procurement. Confirm that the component is sourced from authorized distributors to ensure authenticity. Check the datasheet for any recent Product Change Notices regarding pinout or electrical specifications. Ensure the application design accounts for the 90°C/W thermal resistance in the 8-pin MLF package to prevent thermal shutdown under maximum load conditions.

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

Select this component when a dual-output solution is required to save board space compared to single LDOs. It is appropriate for applications needing low noise and high PSRR for sensitive analog or RF sections. Verify that the system input voltage remains within the 2.3V to 5.5V operating range. Consider the 1µF ceramic capacitor requirement for stability and the need for a 0.1µF bypass capacitor if minimum noise performance is critical.

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

The MIC5310 series consists of dual 150mA µCap LDOs designed for portable electronics. The family offers various fixed output voltage combinations in the same 8-pin MLF package. The MIC5310-SMYML-TR specifically denotes the variant with 3.3V and 2.8V outputs. The 'TR' suffix indicates tape and reel packaging. This part belongs to the ULDO™ product line known for small footprint and high efficiency.

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

Other MIC5310 variants with different output voltages (e.g., MIC5310-SFYML-TR) are pin-compatible but provide different fixed voltages. Single-output LDOs like the MIC5210 may serve as replacements if only one channel is needed, though they occupy more board area. Verify that any substitute matches the 150mA current rating and 2.3V-5.5V input range.