S-1701A5042-U5T1G

Overview

The S-1701A5042-U5T1G is a dual-output low dropout (LDO) voltage regulator from ABLIC, housed in an SOT-89-5 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 µA and a maximum dropout voltage of 210 mV at 100 mA. It operates within a temperature range of -40°C to +85°C, offering a line regulation of 0.2%/V and load regulation of 40 mV. The unit weight is 30 mg.

Feature Summary

• Integrates two independent fixed voltage regulators with a combined voltage detector function for system monitoring.
• Maintains stable output performance with ultra-low standby current consumption suitable for battery-powered applications.
• Provides high precision voltage regulation with tight accuracy tolerances for sensitive electronic circuits.

Applications

• Portable consumer electronics requiring efficient power management
• Battery-operated devices needing extended operational life
• Embedded systems utilizing microcontrollers and sensors

Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to ensure correct voltage outputs and package variants. Confirm RoHS compliance status and check for any recent product change notifications that may affect specifications or pinouts before finalizing procurement orders.

Selection Notes

Select this component when dual regulated supplies are required from a single input source. Ensure the input voltage exceeds the highest required output plus the dropout voltage. Verify thermal dissipation requirements based on the SOT-89-5 package limitations and expected load currents.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators. It is designed for applications requiring both power regulation and voltage monitoring capabilities in a compact surface-mount form factor, serving as a key power management solution for modern portable electronics.

Replacement Considerations

Compatible substitutes include other S-1701 series variants with matching output voltages and packages, such as S-1701E5042-U5T1G or S-1701B5040-U5T1G, provided they meet the same electrical and physical constraints.