MIC47050-1.8YML-TR

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

The MIC47050-1.8YML-TR is a fixed-output ultra-low dropout regulator providing 1.8V at up to 500mA. It operates with an input voltage range of 1.0V to 3.6V and requires a bias supply between 2.3V and 5.5V. The device features a typical dropout voltage of 44mV at full load, ±1.5% initial output accuracy, and includes logic-level enable and power good functions. It is housed in a thermally enhanced 6-pin 2mm x 2mm DFN package.

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

• Dual-supply architecture utilizing separate VIN and VBIAS rails for optimized point-of-load performance.
• NMOS pass transistor delivers high bandwidth and very fast transient response capabilities.
• Integrated open-drain Power Good (PGOOD) indicator and active-high Enable/Shutdown control.
• Comprehensive protection mechanisms including linear current limiting and thermal shutdown.

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

• Point-of-load applications requiring multiple low-voltage supply rails
• Core voltage regulation for DSPs, PLDs, and FPGAs
• Post-regulation of core DC/DC converters in mobile processors
• Power supplies for PDAs, notebooks, and desktop systems

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

Verify the specific suffix 'YML' corresponds to the 6-Lead 2 mm x 2 mm DFN package variant rather than the TDFN option. Confirm that the fixed 1.8V output specification aligns with the target circuit requirements, as adjustable versions exist within the same family. Ensure the ordering documentation explicitly references the tape and reel media type indicated by the 'TR' suffix.

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

Select this component when a fixed 1.8V rail is required with minimal external component count. The dual-supply design necessitates availability of both a primary input rail and a higher bias voltage. Consider the 1μF ceramic output capacitor requirement for stability. Evaluate thermal dissipation calculations based on the junction-to-ambient resistance of the DFN package under maximum load conditions.

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

This part belongs to the MIC47050 series of 500 mA ultra-low dropout regulators manufactured by Microchip Technology. The series encompasses both adjustable and fixed output variants, available in DFN and TDFN packages. The MIC47050-1.8YML-TR specifically denotes the fixed 1.8V version in the DFN package configuration.

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

MIC47050-1.8YMT-TR: Identical electrical specifications but utilizes a 6-Lead 2 mm x 2 mm TDFN package instead of DFN.