MIC5302-1.3YMT

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

The MIC5302-1.3YMT is a single-channel, positive, fixed-output ultra-low dropout (ULDO) linear regulator manufactured by Micrel. It provides a fixed output voltage of 1.3V with a maximum output current of 150mA. The device operates within an input voltage range of 2.3V to 5.5V and features a maximum dropout voltage of 50mV at full load. Key electrical parameters include a quiescent current of 85µA, output noise of 120µVrms, and initial output accuracy of ±2%. Protection functions include thermal shutdown and current limiting.

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

• Ultra-small 1.2mm x 1.6mm Thin MLF® package for space-constrained designs
• Ultra-low dropout voltage of 50mV at 150mA load
• Low output noise of 120µVrms for sensitive circuitry
• Stable operation with small ceramic output capacitors

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

• Cellular phone RF power supplies
• Camera modules in mobile devices
• Imaging sensors for digital still and video cameras
• Portable media players (PMP)
• GPS receivers

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

Verify the manufacturer origin as the MIC5302 series was originally developed by Micrel and later acquired by Microchip Technology. Ensure the component matches the specific 1.3V fixed output variant and the 4-terminal Thin MLF® package configuration. Confirm RoHS compliance status and check for any product change notices related to packaging or assembly sites before procurement.

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

Select this regulator when board space is limited due to its compact 1.2mm x 1.6mm footprint. It is suitable for battery-operated applications requiring low quiescent current and high power supply rejection. Choose this part over adjustable regulators if a precise 1.3V rail is needed without external resistors. Ensure the input voltage remains within the 2.3V to 5.5V range for proper regulation.

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

The MIC5302 belongs to the ULDO™ family of linear regulators designed for portable electronics. It utilizes µCap technology to allow stability with minimal output capacitance, reducing board area and cost. The series offers various fixed output voltages and shares common features like low dropout characteristics and integrated protection mechanisms across different package options.

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

Compatible substitutes include other MIC5302 variants with different fixed output voltages (e.g., MIC5302-1.5YMT, MIC5302-1.8YMT) if the voltage requirement differs but pinout and package remain identical. Cross-reference with Microchip's updated documentation for any pin-compatible alternatives in the same series.