S-1701B3328-U5T1G

Overview

The S-1701B3328-U5T1G is a dual-output low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, housed in an SOT-89-5 surface-mount package. It provides fixed output voltages of 2.8 V and 3.3 V with a maximum continuous output current of 400 mA per channel. The device features a typical 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 LDO regulators with an integrated voltage detector function for combined monitoring and regulation.
• Maintains stable performance with ultra-low quiescent 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 multiple stable voltage rails
• Battery-operated devices needing efficient power management
• Embedded systems utilizing voltage detection for system supervision

Procurement Notes

Verify the specific output voltage combination and package variant against official ABLIC datasheets before ordering. Confirm that the SOT-89-5 footprint matches your PCB design constraints. Ensure thermal management strategies account for the 1 W power dissipation limit under expected load conditions. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when dual fixed outputs are required alongside voltage monitoring capabilities. Compare the 400 mA current capability against load requirements to ensure adequate headroom. Evaluate the dropout voltage characteristics relative to the minimum input supply voltage. Consider the operating temperature range compatibility with the intended environmental conditions.

Part Context

This component belongs to the S-1701 series of combo voltage detectors and regulators designed by ABLIC Inc. The series focuses on providing compact solutions for power management in space-constrained applications. The SOT-89-5 packaging allows for efficient surface-mount assembly while maintaining robust thermal performance for moderate current loads.

Replacement Considerations

Consult official ABLIC documentation for verified substitute part numbers within the S-1701 family or equivalent series. Ensure any replacement maintains identical output voltage pairs and current ratings. Verify pin compatibility and package dimensions to prevent mechanical integration issues during retrofitting.