S-1701A1815-U5T1G

Overview

The S-1701A1815-U5T1G is a dual-output low-dropout (LDO) voltage regulator manufactured by ABLIC Inc., belonging to the S-1701 series. It integrates two fixed positive output channels providing 1.8 V and 1.5 V, respectively, with a maximum continuous output current of 400 mA per channel. The device features a typical quiescent current of 85 µA and supports an input voltage range up to 6.5 V. It utilizes a SOT-89-5 surface-mount package and operates within a temperature range of -40°C to +85°C. Key electrical specifications include a line regulation of 0.2%/V, load regulation of 40 mV, and a dropout voltage of approximately 340 mV at rated load.

Feature Summary

• Integrates dual independent LDO regulators with integrated voltage detection functionality in a single compact package
• Provides fixed 1.8 V and 1.5 V outputs with high accuracy and low dropout characteristics for efficient power management
• Features ultra-low quiescent current consumption to extend battery life in portable electronic applications

Applications

• Portable consumer electronics requiring multiple stable voltage rails
• Battery-powered devices needing efficient power management and extended runtime
• Embedded systems utilizing microcontrollers or memory components with specific voltage requirements

Procurement Notes

Verify that the specific part number suffix matches the required output voltages and package type. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal design accounts for the specified power dissipation limits within the operating temperature range to maintain reliability.

Selection Notes

Select this component when dual fixed voltage outputs are required without external feedback networks. Compare dropout voltage and quiescent current against system requirements to ensure efficiency. Verify that the SOT-89-5 package footprint aligns with PCB layout constraints and thermal pad requirements for adequate heat dissipation.

Part Context

This component is part of the ABLIC S-1701 series, designed as combo voltage detector and regulator ICs. It targets applications demanding space-saving solutions with integrated monitoring capabilities. The series offers various output voltage combinations to suit different digital logic families and peripheral interfaces commonly found in modern embedded designs.

Replacement Considerations

S-1701B1815-U5T1G: Provides identical 1.8 V and 1.5 V outputs but may differ in internal protection features or manufacturing lot specifications. Verify pin compatibility and electrical parameters before substitution.