MCP1812BT-025/LT

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

The MCP1812BT-025/LT is a fixed-output Low Dropout (LDO) linear regulator from the Microchip MCP1812B family, providing a nominal output voltage of 2.5V with a maximum continuous output current capability of 300 mA. It operates within an input voltage range of 1.8V to 5.5V and maintains an ultra-low quiescent current of 250 nA during active operation. The device features a typical shutdown supply current of 5 nA when the SHDN pin is grounded. It is housed in a 5-Lead SOT-23 package and is designed for stable operation with ceramic output capacitors.

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

• Ultra-low quiescent current consumption of 250 nA during normal operation
• Ultra-low shutdown supply current of 5 nA typical when disabled
• Stable with small ceramic output capacitors for low noise performance
• Integrated overcurrent protection for load safety

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

• Energy harvesting systems
• Long-life battery-powered applications
• Wearable electronics such as smart watches and headsets
• Medical devices including hearing aids
• Smart cards and ultra-low consumption green products

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

Verify the specific suffix 'LT' against the manufacturer's official documentation to confirm tape and reel packaging specifications and temperature grade alignment. Confirm that the 'B' variant designation corresponds to the absence of internal output discharge circuitry, which differs from the 'A' series. Ensure compatibility with the required 2.5V fixed output configuration for the target design.

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

Select this component for designs requiring high current delivery up to 300 mA while maintaining minimal power drain during sleep modes. The 2.5V fixed output suits digital logic or sensor supplies needing precise regulation. Consider the 5 nA shutdown current for critical energy conservation needs. Verify that the system can accommodate the minimum recommended ceramic output capacitance for stability.

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

This part belongs to the MCP1811A/11B/12A/12B family of ultra-low quiescent current LDO regulators. The '12' prefix indicates a 300 mA output current class, distinguishing it from the 150 mA MCP1811X series. The 'B' suffix denotes the version without an internal output discharge switch, unlike the 'A' series. These regulators are engineered for extended battery life in portable and wearable electronic devices.

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

MCP1812AT-025/LT: Offers identical electrical parameters but includes an internal output discharge feature upon shutdown.