S-1701W5043-M5T1G

Overview

The S-1701W5043-M5T1G is a dual-output low dropout (LDO) voltage regulator from the ABLIC S-1701 series, manufactured by ABLIC Inc. It provides fixed output voltages of 4.3 V and 5 V with a maximum output current of 400 mA per channel. The device features an ultra-low quiescent current of 85 µA and operates within an input voltage range of 2 V to 6.5 V. It is housed in a compact SOT-23-5 surface-mount package and supports an operating temperature range from -40°C to +85°C. Key performance metrics include a typical dropout voltage of 140 mV, line regulation of 0.2%/V, and load regulation of 40 mV.

Feature Summary

• Integrates two independent fixed-voltage LDO regulators with a combined voltage detector function in a single compact package.
• Achieves ultra-low power consumption through an 85 µA quiescent current specification, suitable for battery-operated applications.
• Provides stable regulation with low dropout characteristics and high accuracy, ensuring reliable performance under varying load conditions.

Applications

• Portable electronic devices requiring efficient multi-rail power management
• Battery-powered systems where low standby current is critical
• Embedded controllers needing simultaneous 4.3 V and 5 V supply rails

Procurement Notes

Verify the specific suffix M5T1G corresponds to the SOT-23-5 package and reel packaging configuration. Confirm RoHS compliance status via the manufacturer's official documentation before integration. Ensure input voltage does not exceed the 6.5 V maximum rating during operation. Check thermal dissipation requirements against the 420 mW power dissipation limit for the selected package.

Selection Notes

Select this component when dual fixed outputs of 4.3 V and 5 V are required from a single IC. It is appropriate for designs prioritizing low quiescent current over high efficiency at heavy loads. Compare dropout voltage specifications against other S-1701 variants if lower voltage drops are needed for different output levels. Ensure the SOT-23-5 package fits the PCB layout constraints.

Part Context

This part belongs to the ABLIC S-1701 series of combo voltage detectors and regulators. The series is designed for general-purpose power management in consumer and industrial electronics. Similar parts in the series vary by output voltage combinations and package types, such as SOT-89-5 or SOT-23-5, while maintaining consistent electrical characteristics like 400 mA output current and 85 µA IQ.

Replacement Considerations

Direct substitutes within the S-1701 series include S-1701D5043-M5T1G, which shares identical electrical specifications and pinout. Verify that any replacement maintains the same SOT-23-5 footprint and thermal characteristics. Cross-reference datasheets to confirm compatibility with existing circuit protection and decoupling components.