S-1701A2521-U5T1G

Overview

The S-1701A2521-U5T1G is a high ripple-rejection low dropout CMOS voltage regulator with an integrated reset function, manufactured by ABLIC Inc. It operates within an input voltage range of 2V to 6.5V and provides a fixed output voltage of 2.5V. The device features a typical quiescent current of 85µA and supports an output current of 400mA. It is housed in a compact SOT-89-5 package, designed for efficient power management in space-constrained applications.

Feature Summary

• Integrates a voltage regulator with a dedicated reset function for system protection
• Delivers high ripple rejection ratios for stable operation in noisy environments
• Utilizes low dropout CMOS technology to minimize power consumption
• Supports a wide input voltage range suitable for battery-powered systems

Applications

• Converter circuits requiring stable voltage regulation
• Battery-powered portable devices needing extended runtime
• Systems requiring integrated voltage supervision and reset capabilities

Procurement Notes

Verify the specific suffix U5T1G corresponds to the SOT-89-5 package and reel packaging configuration. Confirm RoHS compliance status through official documentation. Ensure compatibility with existing board layouts due to the specific pinout of the SOT-89-5 footprint. Check for any product change notifications that may affect lead times or material composition.

Selection Notes

Select this component when a combined LDO and reset function is required to save board space. The 2.5V output is suitable for powering digital logic or analog reference circuits. Consider the 400mA output capability against load requirements. The SOT-89-5 package offers thermal performance advantages over smaller packages while maintaining a small footprint.

Part Context

This part belongs to the S-1701 series of high ripple-rejection low dropout regulators from ABLIC. The series is characterized by its integration of voltage detection and reset functions, targeting applications where power efficiency and system reliability are critical. The S-1701A2521 variant specifically provides a 2.5V output, distinguishing it from other fixed-voltage options in the family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify electrical compatibility, including input voltage range, output current, and reset threshold specifications, before considering alternative components from different manufacturers.