S-1701W1815-U5T1G

Overview

The ABLIC S-1701W1815-U5T1G is a dual-output low-dropout (LDO) voltage regulator and voltage detector integrated circuit. It provides fixed output voltages of 1.5 V and 1.8 V with a maximum output current of 400 mA per channel. The device features an ultra-low quiescent current of 85 µA. It operates within an input voltage range supporting these outputs, maintaining regulation with a typical dropout voltage of 340 mV at full load. The unit offers high accuracy with a line regulation of 0.2 %/V and load regulation of 40 mV. It is housed in a compact SOT-89-5 surface-mount package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates dual fixed LDO regulators with a combined voltage detection function in a single component.
• Delivers high output current capability of 400 mA while maintaining ultra-low standby power consumption.
• Ensures stable voltage regulation under varying load conditions with minimal dropout voltage characteristics.

Applications

• Portable electronic devices requiring efficient multi-rail power management
• Battery-powered systems needing extended operational life through low quiescent current
• Embedded circuits requiring simultaneous regulated supply and voltage monitoring

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and thermal specifications. Ensure the ordering quantity aligns with manufacturer reel requirements. Cross-reference the datasheet revision history to validate electrical parameters for your specific production batch. Confirm RoHS compliance status directly with the supplier or manufacturer before finalizing procurement contracts.

Selection Notes

Select this component when a design requires two distinct regulated voltages alongside voltage supervision without consuming additional board space. The SOT-89-5 package suits applications with moderate thermal dissipation needs. Consider the 400 mA current limit when sizing decoupling capacitors and trace widths. Verify that the input voltage headroom accommodates the specified dropout voltage across the entire operating temperature range.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators from ABLIC. The series is designed for portable equipment where power efficiency and component count reduction are critical. Similar parts in the family vary by output voltage combinations and package types, such as SOT-23-5 variants. The S-1701W1815-U5T1G specifically targets applications needing 1.5 V and 1.8 V rails.

Replacement Considerations

Direct substitutes include other S-1701 series parts with identical output voltages but different packages, such as S-1701W1815-M5T1G in SOT-23-5. Verify pin-to-pin compatibility and thermal performance differences when considering alternative package options from the same manufacturer series.