S-1701W5042-U5T1G

Overview

The ABLIC S-1701W5042-U5T1G is a dual-output low dropout (LDO) voltage regulator from the S-1701 series, manufactured by ABLIC Inc. 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 operates within an ambient temperature range of -40 °C to +85 °C. Packaged in a compact SOT-89-5 surface-mount format, it offers a line regulation of 0.2 %/V and a load regulation of 40 mV. The unit supports a power dissipation of 1 W and maintains a voltage regulation accuracy of 1%.

Feature Summary

• Integrates two independent fixed positive LDO regulators within a single package for space-constrained designs
• Combines voltage regulation with voltage detection capabilities to monitor supply status
• Maintains ultra-low standby current consumption suitable for battery-powered applications

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-operated equipment needing extended operational life
• Embedded systems utilizing combined regulation and monitoring functions

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. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement plans.

Selection Notes

Select this component when dual isolated outputs are required from a single input source. Evaluate the dropout voltage requirements against the minimum input voltage to ensure stable regulation under all load conditions. Consider the SOT-89-5 package thermal performance relative to the expected power dissipation in the target application environment.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators. The series is designed for general-purpose power management in consumer electronics. It distinguishes itself by integrating detection logic alongside standard linear regulation, reducing the component count compared to separate regulator and detector solutions.

Replacement Considerations

Cross-reference with other S-1701 variants sharing the U5T1G suffix for identical packaging and electrical characteristics. Verify that alternative parts match the dual-output configuration and specific voltage tolerances.