S-8521C36MC-BTVT2U

Overview

The S-8521C36MC-BTVT2U is a synchronous rectification step-down switching regulator manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 16V and delivers a fixed output voltage of 3.6V. The device integrates high-side and low-side N-channel MOSFETs for efficient power conversion. It supports a maximum switching frequency of 600kHz and includes built-in protection features such as overcurrent protection, thermal shutdown, and soft-start functionality.

Feature Summary

• Integrates synchronous rectification with internal high-side and low-side N-channel MOSFETs
• Supports wide input voltage range from 2.5V to 16V
• Includes comprehensive protection mechanisms like overcurrent protection and thermal shutdown

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing step-down regulation
• General-purpose DC-DC conversion in embedded systems

Procurement Notes

Verify the specific suffix BTVT2U against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the SOT-23-5 package. Cross-reference the part number with authorized distributors to confirm current availability and lead times, as supply chain status may vary.

Selection Notes

Select this component when a compact solution with integrated synchronous rectification is required for input voltages up to 16V. The fixed 3.6V output makes it suitable for powering 3.3V logic levels with appropriate headroom. Consider the 600kHz switching frequency for balancing efficiency and external component size compared to lower-frequency alternatives.

Part Context

This part belongs to the S-8521 series of synchronous buck regulators from ABLIC. The series is characterized by its integration of power switches, eliminating the need for external Schottky diodes. It is designed for applications demanding high efficiency and small board space, typically housed in the SOT-23-5 package.

Replacement Considerations

Direct replacements must match the 3.6V fixed output, 16V max input, and SOT-23-5 package. Verify pinout compatibility and control interface similarities. Check if alternative parts offer comparable synchronous rectification and protection features.