MCP1701T-1802I/CB

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

The MCP1701T-1802I/CB is a fixed-output low dropout (LDO) positive voltage regulator manufactured by Microchip Technology. It delivers up to 250 mA of output current with a typical quiescent current of 2.0 µA. The device provides a fixed 1.8 V output and operates within an input voltage range of up to 10.0 V. It features high accuracy with ±2% maximum output voltage tolerance and incorporates short circuit protection. The component is housed in a 3-pin SOT-23A package and supports operation across an industrial temperature range from -40°C to +85°C.

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

• Ultra-low quiescent current consumption for extended battery life
• High output current capability of 250 mA
• Tight output voltage regulation with ±2% maximum tolerance
• Incorporates internal short circuit protection for reliability

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

• Battery-powered devices
• Battery-powered alarm circuits
• Smoke detectors
• CO2 detectors
• Smart battery packs

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

Verify the specific ordering suffix 'CB' corresponds to the 3-pin SOT-23A package configuration as defined in the product identification system. Confirm that the 'I' suffix indicates the specified industrial temperature range of -40°C to +85°C. Ensure compatibility with the required 1 µF minimum output capacitance for stable operation.

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

Select this component when a fixed 1.8 V rail is required with minimal standby power drain. The SOT-23A package is suitable for space-constrained designs. Verify that the input voltage does not exceed 10.0 V and that the load current requirements remain within the 250 mA limit for optimal performance.

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

This part belongs to the MCP1701 family of CMOS low dropout regulators designed for portable applications. The 'T' designation indicates tape and reel packaging, while '18' specifies the 1.8 V output voltage. The '2' denotes the standard 2.0% tolerance, and 'I' represents the industrial temperature grade.

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

Direct pin-compatible replacements within the same package may include other MCP1701 variants with different output voltages or packages. Cross-family comparisons should consider quiescent current and dropout voltage specifications.

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

What is the minimum output capacitance required for stability?

A minimum of 1 µF output capacitance is required. The capacitor can be either tantalum or aluminum-electrolytic style.

Does the MCP1701T-1802I/CB include overcurrent protection?

Yes, the device incorporates internal short circuit protection that monitors the current flowing through the P-channel pass transistor and limits output current during fault conditions.