S-1701A2521-M5T1G

Overview

The S-1701A2521-M5T1G is a dual-output low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It provides fixed output voltages of 2.1 V and 2.5 V with a maximum output current of 400 mA per channel. The device features a low quiescent current of 85 µA and operates within an input voltage range of 2 V to 6.5 V. It utilizes an SOT-23-5 surface-mount package and supports a junction temperature range from -40°C to +85°C. Key electrical characteristics include a line regulation of 0.2%/V, load regulation of 40 mV, and a power dissipation rating of 420 mW.

Feature Summary

• Integrates two independent linear regulators in a single compact package for space-constrained designs.
• Combines voltage regulation with voltage detection functionality to monitor supply integrity.
• Maintains stable operation with minimal power consumption through ultra-low quiescent current design.

Applications

• Portable electronic devices requiring efficient multi-rail power management
• Battery-powered systems needing extended operational life
• Embedded circuits requiring combined regulation and voltage monitoring

Procurement Notes

Verify the specific suffix M5T1G corresponds to the SOT-23-5 package configuration during sourcing. Confirm that the manufacturer's datasheet explicitly lists the 2.1 V and 2.5 V fixed outputs for this exact part number. Ensure compatibility with the required thermal dissipation limits of 420 mW for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a dual-output LDO with integrated voltage detection is required in a small footprint. It is suitable for applications prioritizing low standby current and precise fixed voltage rails. Compare the 400 mA output capability against load requirements and ensure the SOT-23-5 package fits the board layout constraints. Verify that the input voltage range covers the system's battery or supply profile.

Part Context

This component belongs to the S-1701 series of combo voltage detectors and regulators. The series is characterized by low dropout performance and high ripple rejection ratios. The S-1701A variant specifically denotes the dual-output configuration with fixed voltage settings, distinguishing it from single-output or adjustable variants within the same product family.

Replacement Considerations

Direct substitutes may include other S-1701 series parts with matching output voltages and package types. Verify pinout compatibility and electrical specifications such as quiescent current and output current ratings before substitution.

FAQ

What are the fixed output voltages for the S-1701A2521-M5T1G?

The device provides fixed output voltages of 2.1 V and 2.5 V on its two independent channels.

Does this regulator include voltage detection functionality?

Yes, the S-1701A series integrates voltage detection capabilities alongside its dual linear regulation functions.