S-1701F2521-U5T1G

Overview

The S-1701F2521-U5T1G is a dual-output low dropout (LDO) voltage regulator from ABLIC's S-1701 series, housed in an SOT-23-5 surface-mount package. It provides fixed output voltages of 2.1 V and 2.5 V with a maximum continuous output current of 400 mA per channel. The device operates within an input voltage range supporting these outputs and maintains a typical quiescent current of 85 µA. Key electrical specifications include a maximum dropout voltage of 160 mV at rated load, a line regulation of 0.2 %/V, and a load regulation of 40 mV. It features positive polarity, fixed output type, and operates reliably across a temperature range of -40 °C to +85 °C.

Feature Summary

• Dual independent fixed voltage outputs for simultaneous power rail generation
• Ultra-low quiescent current consumption for enhanced energy efficiency
• Integrated overcurrent protection and thermal shutdown circuits for system safety

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered equipment needing extended operational life
• Embedded systems utilizing microcontrollers and sensors

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and exact output voltage tolerances. Ensure the ordering quantity aligns with manufacturer reel specifications. Cross-reference the RoHS compliance status and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when dual isolated rails are required from a single LDO topology. The SOT-23-5 package suits space-constrained designs. Verify that the input voltage headroom accommodates the 160 mV dropout characteristic under maximum load conditions. Confirm that the 400 mA current rating meets the peak demand of both output channels simultaneously.

Part Context

This part belongs to the S-1701 series, which combines voltage regulation with detection functions in a compact form factor. The series targets applications demanding high accuracy and low power consumption. The S-1701F variant specifically utilizes the SOT-23-5 package, distinguishing it from other series members that may use SOT-89-5 or different pin configurations.

Replacement Considerations

Consult official substitution lists for equivalent dual-output LDOs with matching current ratings and package dimensions. Verify that alternative components maintain similar dropout voltage characteristics and thermal performance profiles.