S-1701B2521-M5T1G

Overview

The S-1701B2521-M5T1G is a dual-output low-dropout (LDO) voltage regulator from the ABLIC S-1701 series, housed in an SOT-23-5 surface-mount package. It provides fixed output voltages of 2.1 V and 2.5 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 a temperature range of -40 °C to +85 °C. Key electrical specifications include a line regulation of 0.2 %/V, load regulation of 40 mV, and a power dissipation capability of 1 W. Voltage accuracy is maintained at 1 %, ensuring stable performance for precision applications requiring compact power management solutions.

Feature Summary

• Integrates two independent fixed-voltage LDO regulators within a single compact component
• Combines voltage regulation functionality with built-in voltage detection capabilities
• Maintains low quiescent current consumption to support battery-operated systems
• Provides high output current capacity suitable for driving multiple circuit loads

Applications

• Portable electronic devices requiring multi-rail power distribution
• Battery-powered equipment needing efficient voltage step-down
• Embedded systems utilizing combined regulation and monitoring functions
• Compact consumer electronics with strict space constraints

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and functional variations. Ensure the ordering quantity aligns with manufacturer reel requirements. Cross-reference the part number with authorized distributors to confirm authenticity and traceability. Check for any recent product change notifications that may affect mechanical or electrical characteristics before finalizing procurement decisions.

Selection Notes

Select this component when dual isolated outputs are required from a single input source. The SOT-23-5 package offers a small footprint ideal for dense PCB layouts. Consider the dropout voltage characteristics relative to the minimum input supply voltage. Verify that the thermal dissipation limits are sufficient for the expected load conditions and ambient operating temperatures.

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 applications requiring both power regulation and system monitoring in a minimal form factor. The S-1701 family typically integrates CMOS technology to achieve low power consumption while maintaining robust regulatory performance across varying load and line conditions.

Replacement Considerations

Direct substitutes include other S-1701 series variants such as S-1701W2521-U5T1G or S-1701E3026-U5T1G, provided the package type and output voltage combinations match the design requirements. Verify pin-to-pin compatibility and ensure that the replacement part meets the same thermal and electrical specifications.