S-1701T1515-U5T1G

Overview

The S-1701T1515-U5T1G is a low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, designed for battery-powered devices. It integrates a voltage reference, error amplifier, current limiter, short-circuit protection, and phase compensation circuit within a single chip. The device features an ultra-low quiescent current of 85 µA and supports an output current of 400 mA. It provides a fixed output voltage of 1.5 V with a maximum dropout voltage of 140 mV at rated load. The component operates within a temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 package.

Feature Summary

• Integrates comprehensive protection mechanisms including current limiting and short-circuit protection circuits alongside standard regulation components.
• Optimized for high efficiency in portable applications through ultra-low quiescent current consumption characteristics.
• Provides stable regulated output via integrated voltage reference and error amplifier with built-in phase compensation.

Applications

• Battery-powered portable electronic devices
• Mobile communication equipment requiring stable low-voltage rails
• Embedded systems utilizing LDO regulators for power management

Procurement Notes

Verify the specific suffix U5T1G against the manufacturer's official datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the ordering part number matches the exact voltage and package requirements. Cross-reference with authorized distributors to validate authenticity and traceability. Confirm that the SOT-23-5 footprint aligns with your PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.5 V output is required with high current capability up to 400 mA. The ultra-low 85 µA quiescent current makes it suitable for extending battery life in portable devices. Verify that the input voltage exceeds the minimum operating requirement while accounting for the 140 mV dropout voltage under load conditions. Ensure the thermal performance of the SOT-23-5 package meets the application's heat dissipation needs.

Part Context

This component belongs to the ABLIC S-1701 series of low-dropout regulators. The series is characterized by its integration of multiple protection functions and low power consumption. The S-1701T1515 variant specifically denotes the 1.5 V output version. The T1515 suffix typically indicates the output voltage setting within the product line.

Replacement Considerations

Compatible alternatives include other S-1701 series variants with different output voltages or packages, such as S-1701S1515-U5T1G or S-1701E3026-U5T1G, provided the electrical parameters match the design requirements. Verify pin-to-pin compatibility and thermal characteristics before substitution.

FAQ

What protection circuits are integrated into the S-1701T1515-U5T1G?

The device integrates a current limiter, a short-circuit protection circuit, and a phase compensation circuit alongside its voltage reference and error amplifier.

What is the maximum output current capability of this regulator?

The S-1701T1515-U5T1G supports a maximum output current of 400 mA.

What is the typical quiescent current for this component?

The quiescent current is specified as 85 µA, making it suitable for low-power applications.