MIC5305-3.3BML-TR

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

The MIC5305-3.3BML-TR is a fixed-output linear regulator providing 3.3V at up to 150mA. It operates within an input voltage range of 2.25V to 5.5V and features ultra-low dropout characteristics, with a maximum dropout voltage of 85mV at 50mA and 110mV at 150mA for outputs above 2.8V. The device maintains high output accuracy of ±1.0% initially and ±2.0% over temperature. It includes thermal shutdown and current limit protection, utilizes a logic-compatible enable pin, and achieves ripple rejection up to 85dB at 1kHz.

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

• Ultra-low dropout voltage design optimized for battery-operated applications
• High power supply rejection ratio (PSRR) ensuring low output noise
• Logic-compatible enable pin allowing zero-off-mode current state
• Stable operation with very small ceramic output capacitors

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

• Cellular phones
• PDAs
• Fiber optic modules
• Portable electronics
• Notebook PCs

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

Verify the specific ordering suffix 'BML' corresponds to the standard 6-pin 2mm x 2mm MLF package rather than alternative packages like Thin MLF or TSOT-23. Confirm that the '-TR' suffix indicates reel packaging as specified in the manufacturer's ordering information. Ensure compliance with the stated operating temperature range of -40°C to +125°C for your intended environment.

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

Select this component when a compact footprint is required alongside high PSRR and low noise performance. It is suitable for powering sensitive circuitry such as audio codecs or RF modules where stable regulation under varying load conditions is critical. Consider the thermal resistance of the MLF package if operating near maximum current limits.

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

This part belongs to the MIC5305 family of 150mA µCap Ultra-Low Dropout LDO regulators manufactured by Micrel, now Microchip Technology. The series offers various fixed and adjustable output voltages in super-compact packages including 6-pin MLF, Thin MLF, and SOT-23-5. The MIC5305 is designed for portable electronics requiring efficient power management from single-cell batteries.

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

MIC5305-3.3YML-TR