MIC5201-3.3BM

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

The MIC5201-3.3BM is a fixed-output low dropout regulator manufactured by Microchip Technology, providing a stable 3.3V output with a maximum current of 150 mA. It features high voltage accuracy within ±2% and operates over an extended temperature range from -40°C to +85°C. The device utilizes an 8-lead SOIC package and incorporates logic-controlled electronic enable functionality for power management. Key electrical characteristics include extremely tight load and line regulation, very low temperature coefficients, and integrated protection against reversed battery conditions and load dumps.

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

• Logic-controlled electronic enable input allows direct connection to CMOS signals or VIN for shutdown control.
• Integrated protection mechanisms including current limiting, thermal shutdown, reversed-battery protection, and load-dump protection.
• High output voltage accuracy ensures reliable performance across varying load and line conditions.
• Low quiescent current and low dropout voltage optimize efficiency in battery-powered applications.

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

• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery powered equipment
• PCMCIA VCC and VPP regulation/switching
• SMPS post-regulator and DC/DC modules

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

Verify the specific suffix 'BM' corresponds to the required package type (SOIC-8) and junction temperature range (-40°C to +85°C). Confirm that the standard commercial qualification meets your project requirements, as automotive-grade variants utilize different suffixes such as 'VAO'. Ensure ordering documentation explicitly references the fixed 3.3V output configuration to avoid confusion with adjustable versions.

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

Select this component when a fixed 3.3V rail is required with moderate current demands up to 150 mA. The 8-lead SOIC package offers suitable thermal dissipation for general-purpose PCB layouts. Consider the logic-compatible enable pin if system power sequencing requires external control. Verify that the input voltage remains within the specified operating range relative to the output voltage to maintain regulation.

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

This part belongs to the MIC5201 family of 150 mA low dropout regulators designed for handheld and battery-powered devices. The series includes adjustable and fixed voltage options available in both SOIC-8 and SOT-223 packages. The MIC5201-3.3BM specifically denotes the fixed 3.3V version in the surface-mount SOIC-8 package with commercial temperature grading.

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

Publicly confirmed substitute part numbers are not provided in the source material. Contact Microchip sales for comparable alternatives.