MCP1755T-5002E/DC

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

The MCP1755T-5002E/DC is a fixed-output Low-Dropout (LDO) voltage regulator from the MCP1755 family, manufactured by Microchip Technology. It provides a nominal output voltage of 5.0 V with a maximum output current capability of 300 mA. The device operates within an input voltage range of 3.6 V to 16.0 V and features a typical quiescent current of 68.0 µA. Key electrical specifications include a typical dropout voltage of 300 mV at full load, a power supply ripple rejection ratio (PSRR) of 80 dB at 1 kHz, and an output voltage tolerance of ±2.0% over the operating temperature range. The component utilizes a SOT-23-5 surface-mount package.

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

• Integrates true current foldback protection that gracefully reduces output current during overload conditions to prevent thermal damage.
• Includes a Power Good (PWRGD) open-drain output signal to indicate when the regulated voltage reaches its nominal threshold.
• Features a dedicated Shutdown (SHDN) input pin for controlling device enablement and minimizing quiescent current consumption.
• Provides robust internal protection mechanisms including overcurrent limiting, short-circuit protection, and overtemperature shutdown.

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

• Battery-powered alarm circuits
• Smoke detectors
• Carbon dioxide (CO2) detectors
• Microcontroller power supplies
• Portable digital assistants (PDAs)

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

Verify the specific suffix 'DC' against official documentation to confirm the package type and tape-and-reel configuration. Ensure the ordering code matches the required SOT-23-5 footprint and lead-free status. Confirm compliance with RoHS directives and AEC-Q100 automotive reliability standards if applicable to the target environment.

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

Select this component for applications requiring high performance with low quiescent current draw. The wide input voltage range supports various battery chemistries, while the tight output voltage tolerance ensures stable operation for sensitive logic loads. Verify that the thermal dissipation capabilities of the SOT-23-5 package are sufficient for the expected ambient temperature and load current conditions.

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

This part belongs to the MCP1755/MCP1755S family of CMOS LDO regulators designed for high-current applications. The family offers multiple package options, including SOT-23-5, SOT-223-5, and DFN variants. The MCP1755 variant specifically includes additional control pins for shutdown and power good monitoring compared to the simpler MCP1755S version.

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

MCP1755T-5002E/OT