S-1701B3342-U5T1G

Overview

The S-1701B3342-U5T1G is a dual-output Low Dropout (LDO) voltage regulator from the ABLIC S-1701 series, housed in an SOT-89-5 package. It provides fixed output voltages of 3.3 V and 4.2 V with a maximum output current of 400 mA. The device features a low quiescent current of 85 µA and operates within a temperature range of -40°C to +85°C. Key electrical specifications include a line regulation of 0.2%/V, load regulation of 40 mV, and a power dissipation rating of 1 W.

Feature Summary

• Integrates two independent fixed voltage outputs for simultaneous supply requirements
• Maintains stable regulation with ultra-low standby current consumption
• Includes built-in protection mechanisms against overcurrent conditions

Applications

• Portable electronic devices requiring multiple voltage rails
• Battery-powered systems prioritizing energy efficiency
• Embedded circuits needing compact dual-regulator solutions

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct output voltage combinations and package type. Confirm RoHS compliance status and check for any recent Product Change Notifications that may affect pinout or material composition before finalizing procurement orders.

Selection Notes

Select this component when a single package solution is required for generating both 3.3 V and 4.2 V rails. Ensure the input voltage exceeds the highest output voltage by the dropout margin. Verify that the thermal design supports the 1 W power dissipation limit under expected operating conditions and ambient temperatures.

Part Context

This device belongs to the S-1701 family of combo voltage detectors and regulators. It shares the SOT-89-5 footprint with other variants in the series but differs in output voltage settings. The series is designed for applications requiring high integration and low power consumption in small form factors.

Replacement Considerations

Direct substitutes within the same series include S-1701Y3342-U5T1G and S-1701E3026-U5T1G, which share identical packaging and functional characteristics but offer different output voltage configurations.