S-1701V2521-M5T1G

Overview

The S-1701V2521-M5T1G is a dual-output low-dropout (LDO) voltage regulator manufactured by ABLIC. 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 an ultra-low quiescent current of 85 µA, ensuring efficient power management in battery-operated applications. It operates within an input voltage range of 2 V to 6.5 V and maintains stable performance across a temperature range of -40°C to +85°C. The regulator includes a reset function and exhibits a typical dropout voltage of 140 mV at 100 mA load.

Feature Summary

• Dual fixed output channels providing independent regulated voltages for multi-rail systems
• Ultra-low quiescent current consumption enhances energy efficiency in portable devices
• Integrated reset function ensures system reliability during voltage fluctuations
• High ripple rejection capability maintains clean power delivery under noisy conditions

Applications

• Battery-powered consumer electronics requiring multiple voltage rails
• Portable communication devices needing low standby current
• Embedded systems utilizing microcontrollers with specific voltage requirements
• IoT sensors and modules demanding compact power solutions

Procurement Notes

Verify the exact output voltage configuration matches the target circuit design before procurement. Confirm that the SOT-23-5 package footprint aligns with the PCB layout specifications. Ensure the operating temperature range meets the environmental requirements of the final application. Check for any recent product change notifications or obsolescence notices from the manufacturer. Validate supply chain authenticity through authorized distributors to prevent counterfeit components.

Selection Notes

Select this component when dual fixed outputs are required alongside minimal quiescent current draw. Compare dropout voltage specifications against the minimum input voltage available in the system. Consider the thermal dissipation capabilities given the SOT-23-5 package size and expected load currents. Evaluate the reset function threshold compatibility with the downstream logic levels. Assess the trade-off between output accuracy and cost compared to adjustable LDO alternatives.

Part Context

This part belongs to the S-1701 series of low-dropout regulators designed for high-efficiency power management. The series is characterized by its combination of low current consumption and integrated safety features like reset functions. ABLIC positions these components for use in space-constrained applications where power efficiency is critical. The S-1701 family supports various output configurations to accommodate diverse electronic system architectures.

Replacement Considerations

Direct substitutes may include other S-1701 series variants with different output voltage combinations but identical package and pinout configurations. Verify functional equivalence regarding quiescent current, dropout voltage, and reset thresholds when considering alternative part numbers from the same manufacturer.