S-1701W5043-U5T1G

Overview

The S-1701W5043-U5T1G is a dual-output low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, housed in an SOT-89-5 surface-mount package. It provides fixed output voltages of 4.3 V and 5.0 V with a maximum continuous output current of 400 mA per channel. The device features a typical quiescent current of 85 µA and operates within a junction temperature range of -40°C to +85°C. Key electrical specifications include a line regulation of 0.2%/V and a load regulation of 40 mV. The power dissipation capability is rated at 1 W, ensuring stable performance in compact power management applications requiring precise dual-rail supply.

Feature Summary

• Dual independent fixed output channels providing 4.3 V and 5.0 V rails simultaneously
• Ultra-low quiescent current consumption for enhanced energy efficiency
• High output drive capability supporting up to 400 mA per channel
• Integrated voltage detection functionality combined with regulation

Applications

• Portable electronic devices requiring dual voltage rails
• Embedded systems needing stable reference and logic supplies
• Battery-powered equipment prioritizing low standby current
• Industrial control modules with strict thermal constraints

Procurement Notes

Verify the specific suffix U5T1G corresponds to the standard reel packaging configuration when ordering. Confirm that the SOT-89-5 footprint matches your PCB layout guidelines. Ensure input voltage limits are respected to maintain the specified dropout characteristics. Check for any recent product change notifications regarding pinout or material composition updates before finalizing procurement.

Selection Notes

Select this component when dual regulated outputs are required from a single IC to save board space. The S-1701 series is suitable for applications where low noise and high accuracy are critical. Consider the thermal resistance of the SOT-89-5 package if operating near maximum current loads. Compare against single-output LDOs if only one rail is strictly necessary to optimize cost.

Part Context

This part belongs to the ABLIC S-1701 family of combo voltage detectors and regulators. These devices integrate linear regulation with voltage monitoring functions. The series is designed for portable electronics and industrial applications. The S-1701W5043 variant specifically targets designs needing 4.3 V and 5.0 V outputs. It complements other S-1701 models with different voltage combinations.

Replacement Considerations

Direct substitutes may include other S-1701 series parts with compatible output voltages. Verify pin compatibility and thermal performance before swapping. Alternative manufacturers offer similar dual-LDO solutions but may require circuit adjustments. Always consult official datasheets for electrical equivalence.