S-1701D5042-U5T1G

Overview

The S-1701D5042-U5T1G is a dual-output fixed positive low dropout (LDO) voltage regulator manufactured by ABLIC Inc. It provides two independent output voltages of 4.2 V and 5 V with a maximum continuous output current of 400 mA per channel. The device operates within an input voltage range of 2 V to 6.5 V and features a typical quiescent current of 85 µA. It utilizes an SOT-89-5 surface-mount package and supports operation across a temperature range of -40 °C to +85 °C.

Feature Summary

• Dual-channel architecture providing simultaneous regulated outputs
• Ultra-low standby current consumption for battery efficiency
• Integrated voltage detection functionality combined with regulation

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems prioritizing low power consumption
• Embedded circuits needing compact dual-output regulation

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Ensure the selected variant matches the required thermal dissipation capabilities for the intended application environment. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when dual isolated outputs are necessary from a single supply rail. Evaluate the dropout voltage requirements at the maximum load current to ensure sufficient headroom. Consider the SOT-89-5 package dimensions for PCB layout constraints and thermal management needs relative to the expected power dissipation.

Part Context

This model belongs to the S-1701 series, which integrates LDO regulators with voltage detector functions. The series is designed for applications requiring high reliability and low power consumption in small form factors. It complements other ABLIC PMIC solutions by offering combined monitoring and regulation capabilities.

Replacement Considerations

Check for direct substitutes within the S-1701 family that share identical output voltages and package types. Verify pin-to-pin compatibility before replacing existing designs with alternative part numbers.