S-1701Q3242-U5T1G

Overview

The S-1701Q3242-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 4.2 V and 3.2 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 an input voltage range supporting these outputs. It maintains a maximum dropout voltage of 250 mV at 100 mA load. The component functions reliably across an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates two independent positive linear regulators in a single compact package
• Combines voltage regulation functionality with built-in voltage detection circuits
• Optimized for low power consumption with ultra-low standby current characteristics
• Includes internal protection mechanisms against overcurrent and thermal overload

Applications

• Portable electronic devices requiring multiple stable supply rails
• Battery-powered systems needing efficient power management
• Embedded control units utilizing integrated voltage monitoring
• Industrial equipment operating in wide temperature environments

Procurement Notes

Verify the specific suffix U5T1G corresponds to the required tape-and-reel packaging configuration for automated assembly lines. Confirm that the SOT-89-5 footprint matches the target PCB layout dimensions. Ensure the selected variant meets RoHS compliance standards if required by the manufacturing facility. Cross-reference the datasheet revision date to confirm the availability of the latest electrical specifications and thermal data before finalizing the bill of materials.

Selection Notes

Select this component when a design requires two distinct regulated voltages from a single source without occupying excessive board space. The S-1701Q3242-U5T1G is suitable for applications prioritizing low quiescent current to extend battery life. Engineers should verify that the input voltage remains sufficiently above the highest required output voltage to maintain regulation under all load conditions. Consider the thermal dissipation capabilities of the SOT-89-5 package relative to the expected ambient temperature and load current.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators manufactured by ABLIC Inc. The series is designed for portable equipment, offering high accuracy and low current consumption. Similar parts in the lineup include variants with different output voltage combinations, such as the S-1701E3026-U5T1G or S-1701Y3342-U5T1G, allowing designers to choose specific voltage pairs while maintaining consistent performance characteristics and package compatibility.

Replacement Considerations

Direct replacements within the same family include S-1701W2521-U5T1G or S-1701F5043-M5T1G, provided the output voltage requirements align with those specific models. Verify pinout compatibility between SOT-89-5 variants before substitution. Alternative packages like SOT-23-5 exist for space-constrained designs but may require schematic adjustments.