MIC5205-3.1BM5-TR

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

The MIC5205-3.1BM5-TR is a fixed-output linear voltage regulator manufactured by Microchip Technology, providing a nominal 3.1V output with a maximum continuous current of 150 mA. It operates within an input voltage range of +2.5V to +16V and features ultra-low noise performance, high accuracy (±1%), and low dropout voltage. The device includes logic-controlled electronic enable functionality, reverse-battery protection, current limiting, and overtemperature shutdown. It is housed in a compact 5-lead SOT-23 package.

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

• Ultra-low noise output suitable for sensitive analog circuits
• Logic-controlled electronic enable/shutdown control input
• Integrated reverse-battery protection and thermal regulation
• High initial output voltage accuracy with tight line and load regulation

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

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

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

Verify the specific suffix 'BM5' against official documentation to confirm package type and media configuration, as standard listings often reference 'YM5'. Ensure the ordering suffix matches the required tape and reel specifications. Confirm RoHS compliance status directly from the manufacturer's datasheet before procurement.

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

Select this component for applications requiring precise 3.1V regulation with minimal power consumption. Consider the low quiescent current and shutdown mode for battery-operated devices. Evaluate thermal dissipation requirements based on the input-to-output voltage differential and load current to ensure operation within the specified junction temperature limits.

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

This part belongs to the MIC5205 family of 150 mA low-noise LDO regulators designed for handheld and battery-powered devices. The family offers various fixed output voltages and adjustable versions in a small SOT-23-5 package. It is characterized by CMOS or TTL compatible enable inputs and extremely tight regulation specifications.

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

MIC5205-3.1YM5-TR

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

How does the BYP pin affect output noise?

Connecting a 470 pF capacitor from the BYP pin to ground quiets the internal voltage reference, significantly reducing output noise.

What are the stability requirements for the output capacitor?

A minimum of 1.0 µF is recommended if the BYP pin is not used. If a 470 pF bypass capacitor is installed, a minimum of 2.2 µF is generally required to maintain stability.