S-1701V2521-U5T1G

Overview

The S-1701V2521-U5T1G is a CMOS low dropout (LDO) voltage regulator from the ABLIC S-1701 series, featuring an integrated voltage detector. It provides a fixed output voltage of 2.1 V and 2.5 V with a maximum output current of 400 mA. The device operates within an input voltage range of 1.6 V to 5.5 V and maintains a typical quiescent current of 85 µA. It utilizes an SOT-89-5 package and supports operation temperatures from -40°C to +85°C.

Feature Summary

• Integrates a linear voltage regulator with a dedicated voltage detection function for system monitoring.
• Features high ripple rejection ratio to maintain stable output under noisy power supply conditions.
• Includes built-in protection circuits against short-circuit current and thermal overload.

Applications

• Battery-powered portable electronic devices requiring efficient power management.
• Embedded systems needing reliable voltage supervision and reset generation.
• Communication modules utilizing low-noise power regulation.

Procurement Notes

Verify the specific suffix U5T1G corresponds to the SOT-89-5 package and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations prior to procurement. Ensure the ordering part number matches the required output voltage combination of 2.1 V and 2.5 V.

Selection Notes

Select this component when a combined LDO and voltage detector solution is required to save board space. The 400 mA output capability suits moderate load applications. Consider the 85 µA quiescent current for battery life optimization. Verify that the SOT-89-5 footprint fits the design constraints compared to smaller packages like SOT-23-5.

Part Context

This part belongs to the S-1701 series of high ripple-rejection low dropout CMOS voltage regulators. The series is characterized by low noise and high PSRR, making it suitable for sensitive analog and RF circuits. The integration of voltage detection functions allows for simplified system designs by reducing the need for external supervisor ICs.

Replacement Considerations

Check for direct pin-compatible alternatives within the S-1701 family offering different output voltages. Verify if newer revisions of the S-1701 series offer improved thermal performance or updated packaging options while maintaining electrical compatibility.

FAQ

What are the specific output voltages provided by the S-1701V2521-U5T1G?

The device provides two fixed output voltages: 2.1 V and 2.5 V.

Does the S-1701V2521-U5T1G include overcurrent protection?

Yes, the device includes built-in protection circuits against short-circuit current and thermal overload.