S-1701S1815-U5T1G

Overview

The S-1701S1815-U5T1G is a CMOS-based special purpose voltage regulator manufactured by ABLIC Inc. It integrates a low-dropout (LDO) regulator with a voltage detector function, designed for battery-powered applications. The device operates within an input voltage range of 2V to 6.5V and provides a fixed output voltage of 1.8V. It supports a maximum output current of 400mA while maintaining a low quiescent current of 85µA. The component is housed in a compact SOT-23-5 package, suitable for surface-mount assembly.

Feature Summary

• Integrates a dedicated voltage detector circuit alongside the LDO regulator for system monitoring.
• Optimized for ultra-low power consumption with minimal quiescent current draw during operation.
• Provides stable regulated output from single-cell or multi-cell battery sources.

Applications

• Battery-powered portable electronic devices
• Voltage monitoring in converter circuits
• System reset generation in embedded microcontrollers

Procurement Notes

Verify the specific suffix U5T1G against official ABLIC documentation to confirm pinout compatibility and tape-and-reel specifications. Ensure the sourcing channel provides valid RoHS compliance certificates. Cross-reference the part number with the manufacturer's latest datasheet to confirm availability status and any recent product change notifications affecting this specific variant.

Selection Notes

Select this component when a combined regulation and voltage detection solution is required in a small footprint. The 400mA output capability suits moderate load applications, while the 85µA IQ ensures extended battery life. Verify that the 1.8V fixed output aligns with the target logic levels and that the SOT-23-5 package fits the PCB layout constraints.

Part Context

This part belongs to the S-1701 series of special purpose regulators from ABLIC. These devices are engineered to simplify power management designs by combining regulation and detection functions. The series targets cost-sensitive and space-constrained consumer electronics where efficient power usage and reliable voltage supervision are critical requirements.

Replacement Considerations

Check ABLIC's official substitution guide for equivalent parts within the S-1701 family. Confirm that alternative candidates match the 1.8V output, 400mA current rating, and SOT-23-5 package dimensions before implementation.