S-1701F5042-U5T1G

Overview

The S-1701F5042-U5T1G is a dual-output low dropout regulator from the ABLIC S-1701 series, housed in an SOT-23-5 package. It provides fixed output voltages of 4.2 V and 5 V with a maximum output current of 400 mA per channel. The device features a typical quiescent current of 85 uA and a maximum dropout voltage of 210 mV at 100 mA load. Line regulation is specified at 0.2 %/V, while load regulation is 40 mV. The unit supports a power dissipation of 1 W and operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Dual-channel architecture providing independent fixed voltage outputs
• Ultra-low current consumption for extended battery life
• Integrated overcurrent protection circuitry
• Thermal shutdown mechanism for operational safety

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems prioritizing energy efficiency
• Embedded control circuits needing reliable power management

Procurement Notes

Verify the specific suffix U5T1G against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure input voltage constraints align with the 4.2 V and 5 V outputs to prevent excessive power dissipation. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement orders.

Selection Notes

Select this component when dual fixed voltage rails are required in a compact SOT-23-5 footprint. The 400 mA output capability suits moderate load applications. Consider the 85 uA quiescent current for battery-operated designs. Verify that the input voltage remains within safe limits to maintain the specified line and load regulation performance across the operating temperature range.

Part Context

This part belongs to the S-1701 series of combo voltage detector/regulator ICs. It integrates LDO functionality with voltage detection capabilities. The series is designed for applications requiring precise power management in small form factors. ABLIC utilizes CMOS technology to achieve high accuracy and low power consumption in these regulators.

Replacement Considerations

S-1701F5043-M5T1G offers similar dual-output characteristics with slightly different voltage settings (4.3 V and 5 V). Verify pinout compatibility and thermal requirements when substituting. Check official ABLIC cross-reference lists for confirmed equivalent parts.