S-1701W3327-U5T1G

Overview

The S-1701W3327-U5T1G is a dual-output low dropout voltage regulator manufactured by ABLIC Inc. It features two fixed output voltages of 2.7 V and 3.3 V with a maximum output current of 400 mA per channel. The device operates within an input voltage range supporting these outputs, maintaining a typical quiescent current of 85 µA. It exhibits a line regulation of 0.2 %/V and load regulation of 40 mV. The unit is housed in a compact SOT-89-5 surface-mount package, rated for power dissipation up to 1 W, and functions reliably across a temperature range from -40 °C to +85 °C.

Feature Summary

• Integrates two independent linear regulators in a single package for space-constrained designs
• Maintains stable output voltages with low quiescent current consumption for battery efficiency
• Includes built-in voltage detection circuitry for system monitoring and reset control

Applications

• Power supply stages for automotive domain controllers
• Voltage regulation for sensor interfaces in ADAS systems
• Backup power management for cockpit electronic units

Procurement Notes

Verify the specific output voltage combination and package variant against the official datasheet before ordering. Confirm that the SOT-89-5 footprint matches the target PCB layout requirements. Ensure thermal management strategies account for the 1 W power dissipation rating under maximum load conditions. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and lead times.

Selection Notes

Select this component when dual isolated rails are required from a single input source. Compare dropout voltage specifications against the minimum input voltage margin. Evaluate the 85 µA quiescent current impact on overall system standby power. Consider the SOT-89-5 thermal performance relative to adjacent components on the board.

Part Context

This part belongs to the S-1701 series of combo voltage detector/regulators designed for automotive applications. It complements other ABLIC PMICs by providing regulated power alongside voltage supervision. The series supports various fixed output combinations to suit different logic levels and sensor requirements in modern vehicle electronics.

Replacement Considerations

Direct substitutes include other S-1701 series variants with matching output voltages such as S-1701W3326 or S-1701W3328. Verify pin compatibility and thermal characteristics when considering cross-series replacements like the S-1711 series.