S-1701U5042-U5T1G

Overview

The S-1701U5042-U5T1G is a dual-output low dropout voltage regulator from the ABLIC S-1701 series, housed in an SOT-89-5 package. It provides fixed output voltages of 4.2 V and 5 V with a maximum output current of 400 mA per channel. The device features a typical quiescent current of 85 µA and a voltage regulation accuracy of ±1%. Key electrical parameters include a line regulation of 0.2 %/V, load regulation of 40 mV, and a power dissipation rating of 1 W. It operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates dual independent linear regulators with combined voltage detection capabilities
• Maintains stable output performance with ultra-low standby current consumption
• Provides high-precision voltage regulation suitable for sensitive digital logic circuits

Applications

• Portable electronic devices requiring multiple regulated supply rails
• Battery-powered systems needing extended operational life
• Embedded control units in consumer electronics

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and thermal characteristics. Ensure the ordering quantity aligns with manufacturer reel specifications. Cross-reference the exact part number with authorized distributors to confirm availability and authenticity before finalizing procurement plans.

Selection Notes

Select this component when dual isolated outputs are required from a single package footprint. Consider the 400 mA current limit and 1 W power dissipation for thermal management. Verify that the input voltage exceeds the highest output voltage by the specified dropout margin across the full operating temperature range.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators. It shares the series' core architecture but differs in output voltage configuration. Similar parts in the family include variants with different voltage combinations such as S-1701E5042-U5T1G or S-1701W2521-U5T1G, offering flexibility for various system voltage requirements.

Replacement Considerations

Direct replacements must match the SOT-89-5 package and dual-output configuration. Verify equivalent electrical parameters including output currents and quiescent currents. Check for identical pin assignments to ensure board-level compatibility without redesign.