S-1701F5041-U5T1G

Overview

The S-1701F5041-U5T1G is a fixed positive low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It operates within an input voltage range of 2 V to 6.5 V and delivers a maximum output current of 400 mA. The device provides a fixed output voltage of 5 V with a typical dropout voltage of 0.14 V and a maximum of 0.21 V at rated load. It features high voltage regulation accuracy of 1% and includes built-in overcurrent protection and thermal shutdown circuits for enhanced reliability. The component is housed in a compact SOT-23-5 package, suitable for surface-mount applications.

Feature Summary

• Integrated overcurrent protection circuit limits output transistor current to prevent damage under overload conditions.
• Built-in thermal shutdown circuit activates to protect the device from overheating during excessive power dissipation.
• Low dropout voltage design enables efficient operation even when the input voltage is close to the output level.

Applications

• Portable electronic devices requiring stable 5V power supply
• Battery-operated equipment with limited headroom
• Embedded systems needing reliable linear regulation

Procurement Notes

Verify the exact part number suffix against official ABLIC documentation to ensure correct packaging and temperature grade. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before procurement. Ensure ordering quantities align with standard reel sizes specified by the supplier.

Selection Notes

Select this regulator when a fixed 5V output is required with moderate current demands up to 400 mA. Consider its low dropout characteristic for applications where input voltage varies closely around the output level. Verify that the thermal performance in the target enclosure supports the expected power dissipation without exceeding junction temperature limits.

Part Context

This component belongs to the S-1701 series of LDO regulators from ABLIC Inc., designed for general-purpose voltage regulation. The series offers various fixed output voltages and packages to suit different application needs. The S-1701F5041 variant specifically targets 5V output applications requiring robust protection features and compact footprint.

Replacement Considerations

Check for direct pin-compatible alternatives within the same S-1701 family offering similar electrical characteristics. Verify if other manufacturers provide equivalent LDOs with matching output voltage, current rating, and package type. Ensure any substitute maintains comparable dropout voltage and protection functionalities.