S-1701C5043-U5T1G

Overview

The S-1701C5043-U5T1G is a dual-output low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, designed for positive voltage regulation. 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 a typical quiescent current of 85 µA and operates within an input voltage range of 2 V to 6.5 V. It exhibits a typical dropout voltage of 140 mV and maintains a line regulation of 0.2 %/V. The unit is housed in a compact SOT-23-5 surface-mount package and supports an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Integrates two independent fixed-voltage LDO regulators within a single compact package
• Provides high ripple rejection performance suitable for noise-sensitive applications
• Includes built-in overcurrent protection and thermal shutdown circuits for enhanced reliability

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered equipment needing low quiescent current consumption
• Embedded systems utilizing microcontrollers and memory components

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Ensure that the selected package variant matches the intended PCB footprint and soldering profile requirements. Cross-reference the part number with manufacturer datasheets to validate the exact output voltage combinations and current ratings before finalizing procurement specifications.

Selection Notes

Select this component when a dual-output solution is required to save board space compared to using separate single-channel regulators. Consider the 400 mA output capability and low dropout characteristics for efficient power management in battery-operated systems. Evaluate the thermal performance within the SOT-23-5 package constraints based on the expected load current and ambient operating conditions.

Part Context

This component belongs to the S-1701 series of low-dropout regulators manufactured by ABLIC Inc. The series is characterized by its combination of low current consumption and high accuracy, making it suitable for various consumer and industrial electronics. The S-1701C5043-U5T1G specifically offers dual outputs, distinguishing it from single-output variants within the same family.

Replacement Considerations

Direct substitutes include other S-1701 series parts with compatible pinouts and similar electrical specifications, such as the S-1701D5043-M5T1G or S-1701F5043-M5T1G, provided the package type and output voltage requirements align.