S-1701F1815-U5T1G

Overview

The S-1701F1815-U5T1G is a dual-output low dropout (LDO) voltage regulator from the ABLIC S-1701 series, manufactured by ABLIC Inc. It integrates two fixed output voltages of 1.5 V and 1.8 V within a single package. The device supports a maximum output current of 400 mA per channel with a quiescent current of 85 uA. It operates within an input voltage range of 2 V to 6.5 V and provides a typical dropout voltage of 340 mV at 100 mA. The unit features a voltage regulation accuracy of 1% and is housed in a compact SOT-89-5 surface-mount package.

Feature Summary

• Integrates dual fixed voltage outputs for combined regulation and detection functions
• Maintains ultra-low quiescent current for extended battery life in portable devices
• Provides high ripple rejection performance to ensure stable power delivery

Applications

• Portable electronic devices requiring efficient multi-rail power management
• Battery-powered systems needing low standby current consumption
• Embedded circuits utilizing integrated voltage detection capabilities

Procurement Notes

Verify the specific suffix U5T1G against official ABLIC documentation to confirm pinout and packaging details. Ensure compatibility with SOT-89-5 footprint requirements during PCB layout. Confirm thermal dissipation limits for the intended operating environment. Cross-reference the part number with authorized distributors to avoid counterfeit components. Validate that the 1.5 V and 1.8 V outputs align with target circuit specifications.

Selection Notes

Select this component when dual regulated rails are required alongside voltage monitoring functions. The S-1701 series offers a balance of low quiescent current and moderate output current capability. Consider the SOT-89-5 package size constraints relative to available board space. Evaluate the 1% accuracy specification against system tolerance requirements. Compare dropout characteristics with other LDO options for efficiency optimization under varying load conditions.

Part Context

This part belongs to the S-1701 family of CMOS LDO regulators designed for low power applications. The series combines voltage regulation with voltage detection features in a single IC. ABLIC utilizes advanced CMOS processes to achieve low quiescent current while maintaining stability. The S-1701 series is widely used in consumer electronics and industrial equipment where space and power efficiency are critical design parameters.

Replacement Considerations

Check ABLIC datasheets for direct pin-to-pin replacements within the S-1701 series. Verify equivalent output voltages and current ratings before substitution. Ensure compatible package types such as SOT-89-5 or SOT-23-5 variants if form factor changes are acceptable.