S-8520C31MC-BRQT2G

Overview

The S-8520C31MC-BRQT2G is a synchronous rectification step-down DC-DC converter IC manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 10V and provides a fixed output voltage of 3.1V. The device supports a maximum output current of 1A and integrates an internal power MOSFET for high efficiency. It features a switching frequency of 60kHz and operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification topology for enhanced conversion efficiency
• Integrated internal power MOSFET simplifying external component requirements
• Fixed output voltage configuration ensuring stable power delivery

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment needing extended operational life
• General-purpose low-voltage DC-DC conversion circuits

Procurement Notes

Verify the specific suffix BRQT2G against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint, as the S-8520 series utilizes specific surface-mount packages. Confirm RoHS compliance status through the manufacturer's latest environmental declaration before finalizing procurement orders.

Selection Notes

Select this component when a compact, high-efficiency solution is required for converting higher battery voltages down to a stable 3.1V rail. The integrated synchronous design reduces the need for external Schottky diodes, saving board space. Consider the 60kHz switching frequency for applications where electromagnetic interference (EMI) filtering must be balanced against component size constraints.

Part Context

This part belongs to the S-8520/8521 series of synchronous buck converters from ABLIC. These ICs are designed for applications demanding high efficiency in small form factors. The series typically offers fixed output options and integrates control logic with power stages, distinguishing it from non-synchronous alternatives that require external rectification components.

Replacement Considerations

Direct replacements may include other ABLIC S-8520 series variants with different output voltages or current ratings. Cross-manufacturer equivalents should match the 1A output capability, 2.5V-10V input range, and SOT-23-5 package dimensions. Verify pinout compatibility and thermal performance characteristics before substitution.