S-8521F25MC-BPKT2G

Overview

The S-8521F25MC-BPKT2G is a synchronous rectification step-down DC/DC converter IC manufactured by ABLIC Inc. It operates with an input voltage range of 2.5V to 6.0V and provides a fixed output voltage of 2.5V. The device integrates high-side and low-side N-channel MOSFETs for efficient power conversion. Key electrical specifications include a maximum switching frequency of 1.2MHz, a typical quiescent current of 35µA, and a shutdown current of 0.4µA. It supports a maximum output current of 1.0A and features built-in protection mechanisms such as overcurrent protection and thermal shutdown.

Feature Summary

• Integrates synchronous rectification with internal high-side and low-side N-channel MOSFETs for enhanced efficiency
• Features a wide input voltage operating range suitable for single-cell lithium-ion battery applications
• Includes comprehensive protection circuits against overcurrent conditions and excessive temperature

Applications

• Portable electronic devices powered by single-cell lithium-ion batteries
• Battery-operated consumer electronics requiring efficient voltage regulation
• Embedded systems utilizing microcontrollers or sensors with 2.5V logic requirements

Procurement Notes

Verify the specific suffix 'BPKT2G' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS and REACH regulations required for your region. Confirm availability status directly with authorized distributors as lead times may vary based on manufacturing schedules.

Selection Notes

Select this component when a compact solution for stepping down single-cell lithium-ion battery voltage to 2.5V is required. The integrated synchronous design offers superior efficiency compared to asynchronous alternatives. Consider the 1.2MHz switching frequency for minimizing external inductor size while maintaining stable output under varying load conditions.

Part Context

This part belongs to the S-8521 series of synchronous rectification step-down converters from ABLIC Inc. The series is designed for portable applications requiring high efficiency and small footprint. The S-8521 family typically includes various fixed output voltage options and different package configurations to suit diverse design constraints.

Replacement Considerations

Consult the official datasheet for direct pin-compatible substitutes within the S-8521 series that offer different fixed output voltages if system requirements change. Verify functional equivalence before replacing with components from other manufacturers.