S-1701B5043-U5T1G

Overview

The S-1701B5043-U5T1G is a low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, manufactured by ABLIC Inc. It features a dual-output configuration providing fixed voltages of 4.3 V and 5.0 V with a maximum output current of 400 mA per channel. The device operates within an input voltage range up to 6.5 V and maintains a typical dropout voltage of 140 mV at 100 mA. It incorporates a built-in voltage detector function and consumes a low quiescent current of 85 µA. The component is housed in a compact SOT-23-5 surface-mount package and is rated for operation between -40°C and +85°C.

Feature Summary

• Dual fixed output channels delivering 4.3 V and 5.0 V simultaneously
• Integrated voltage detection circuitry for system monitoring
• Low quiescent current consumption of 85 µA for power efficiency
• Compact SOT-23-5 surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring multiple stable supply rails
• Embedded systems needing integrated voltage supervision
• Battery-powered equipment prioritizing low standby current
• Industrial control modules operating in extended temperature ranges

Procurement Notes

Verify the specific suffix U5T1G against official ABLIC documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering code matches the exact voltage combination and package type required for your design. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm lead times and minimum order quantities directly with the supplier before finalizing procurement plans.

Selection Notes

Select this component when a dual-rail LDO solution is necessary to save board space and reduce component count. The S-1701B5043-U5T1G is suitable for applications requiring simultaneous 4.3 V and 5.0 V supplies from a single input source. Consider its 400 mA output capability and low dropout characteristics for efficient power management in portable or battery-operated systems where thermal dissipation and efficiency are critical constraints.

Part Context

This part belongs to the ABLIC S-1701 series of low-dropout regulators, which are designed for high reliability and low power consumption. The series offers various fixed output voltage combinations and packages, including SOT-89-5 and SOT-23-5. The S-1701B5043-U5T1G specifically utilizes the SOT-23-5 package, distinguishing it from larger footprint variants in the same family while maintaining similar electrical performance characteristics.

Replacement Considerations

Check ABLIC's official substitution guide for compatible parts within the S-1701 series. Verify pin compatibility and electrical specifications before replacing with other dual-output LDOs from different manufacturers.