S-8426AAA-J8T1U

Power Supply Controllers, Monitors Overview

The S-8426AAA-J8T1U is a synchronous step-down switching regulator manufactured by ABLIC Inc. It integrates high-efficiency power MOSFETs and operates within an input voltage range of 2.5 V to 5.5 V. The device supports adjustable output voltages down to 0.9 V with a maximum output current of 3 A. Key electrical parameters include a switching frequency of 1 MHz, peak efficiency exceeding 90%, and quiescent current of 15 µA. It features overcurrent protection, thermal shutdown, and soft-start functionality. The component is housed in an 8-pin SOP package and operates reliably between -40°C and +85°C.

Power Supply Controllers, Monitors Feature Summary

• Integrates synchronous rectification for high conversion efficiency
• Supports wide input voltage range suitable for single-cell lithium battery applications
• Includes comprehensive protection mechanisms against overcurrent and overheating

Power Supply Controllers, Monitors Applications

• Portable electronic devices powered by single-cell lithium batteries
• Low-voltage digital logic supply regulation
• Embedded systems requiring efficient DC-DC conversion

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix J8T1U to confirm the tape-and-reel packaging configuration and temperature grade. Ensure compatibility with the target PCB footprint for the 8-SOP package. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or recommended operating conditions before finalizing procurement orders.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing circuits that require high efficiency from a single-cell lithium source. The integrated synchronous design reduces external component count compared to asynchronous alternatives. Consider the 1 MHz switching frequency for balancing size and noise, and verify that the load current does not exceed the 3 A limit under all operating conditions.

Power Supply Controllers, Monitors Part Context

This part belongs to ABLIC's series of low-power synchronous buck converters. It is designed to replace linear regulators in battery-powered applications to extend operational life. The integration of power switches simplifies the bill of materials and reduces the overall solution size for portable electronics.

Power Supply Controllers, Monitors Replacement Considerations

Check for direct pin-compatible alternatives within the same ABLIC family that may offer different current ratings or packaging options. Verify that substitute parts maintain the same input voltage range and switching frequency characteristics to ensure circuit stability.