MIC5252-2.8BML-TR

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

The MIC5252-2.8BML-TR is a fixed-output low-dropout linear regulator providing a 2.8V output with a maximum load current of 150mA. It operates within an input voltage range of 2.7V to 6.0V and features ultra-low output noise of 30µV(rms). The device includes a TTL-compatible enable pin, thermal shutdown, and current limit protection. It utilizes a 6-pin 2mm × 2mm MLF™ package and maintains stability with ceramic capacitors.

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

• Ultra-low noise performance optimized for RF applications
• TTL-logic-controlled enable pin with zero off-mode current
• High power supply rejection ratio at low supply voltages
• Stable operation with low-ESR ceramic output capacitors

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

• Cellular phones and pagers
• Battery-powered equipment
• Laptop, notebook, and palmtop computers
• Consumer and personal electronics

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

Verify the component manufacturer, as the datasheet originates from Micrel, Inc., which was acquired by Microchip Technology. Confirm that the specific ordering suffix corresponds to the MLF™ package variant rather than the SOT-23-5 version. Ensure the part number matches the exact output voltage requirement before procurement.

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

Select this component when low-noise regulation is critical for sensitive analog or RF circuits. The MLF™ package offers superior thermal dissipation compared to the SOT-23-5 variant. Ensure the application requires a fixed 2.8V output and fits within the 150mA continuous current constraint.

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

This device belongs to the MIC5252 series of high-performance CMOS LDO regulators. The series is characterized by its ability to operate with small ceramic capacitors and its focus on minimizing power consumption in portable devices. The MLF™ package variant provides a compact footprint with enhanced thermal characteristics.

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

MIC5252-2.8YML

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

What is the function of the BYP pin?

The BYP pin allows for further reduction of output noise by connecting an external capacitor (recommended 0.01µF) to ground, bypassing the internal reference.

How does the active shutdown feature work?

When the enable pin is driven low, the regulator enters a shutdown state with near-zero current consumption. An internal N-Channel MOSFET turns on to actively discharge the output capacitor and de-energize the load.