S-1701C5040-U5T1G

Overview

The S-1701C5040-U5T1G is a dual-output fixed positive low dropout (LDO) voltage regulator manufactured by ABLIC. It provides two independent output voltages of 4.0 V and 5.0 V with a maximum continuous output current of 400 mA per channel. The device features an ultra-low quiescent current of 85 µA, ensuring efficient power management in battery-operated systems. It operates within an input voltage range up to 6.5 V and maintains stable regulation across a junction temperature range of -40°C to +85°C. The regulator exhibits a typical dropout voltage of 140 mV at 100 mA load, with line regulation of 0.2%/V and load regulation of 40 mV. Voltage accuracy is specified at ±1%. Packaged in a compact SOT-89-5 surface-mount format, it supports a maximum power dissipation of 1 W.

Feature Summary

• Dual-channel architecture delivering simultaneous fixed 4.0 V and 5.0 V outputs from a single package
• Ultra-low quiescent current consumption of 85 µA for extended battery life in portable applications
• Integrated voltage detection capability combined with linear regulation functions
• High thermal stability and robust performance under varying load conditions

Applications

• Power supply stages for automotive electronic control units (ECUs)
• Voltage regulation for mobile communication modules and handheld devices
• Backup power management systems requiring stable dual-rail supplies
• Industrial sensor interfaces needing isolated or distinct voltage rails

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and thermal characteristics. Ensure that the ordering quantity aligns with manufacturer reel specifications. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement contracts.

Selection Notes

Select this component when dual regulated outputs are required without external resistor networks. Consider the SOT-89-5 package constraints for thermal management if operating near maximum power dissipation limits. Verify input voltage headroom to ensure dropout voltage requirements are met under worst-case load conditions.

Part Context

This part belongs to the S-1701 series of combo voltage detector/regulator ICs designed for high-reliability applications. The series is characterized by low current consumption and integrated monitoring functions, making it suitable for safety-critical environments where power efficiency and voltage stability are paramount.

Replacement Considerations

Direct substitutes include other S-1701 variants with compatible output voltages such as S-1701B5040-U5T1G or S-1701Y3342-U5T1G, provided the output voltage levels match system requirements. Cross-reference pinouts and thermal resistance values to ensure mechanical and electrical compatibility.