S-8521E50MC-BMJT2U

Overview

The S-8521E50MC-BMJT2U is a step-down DC-DC switching controller manufactured by ABLIC Inc. It operates within the PMIC category and features a positive output configuration. The device utilizes a SOT-23-5 surface-mount package for compact integration. Key electrical specifications include a fixed 5.0 V output voltage and a maximum output current capability of 250 mA. The unit supports an input voltage range up to 6.0 V, ensuring compatibility with standard single-cell lithium-ion battery supplies. It incorporates internal compensation for stable operation without external components.

Feature Summary

• Integrates a high-speed PWM control loop for efficient step-down voltage regulation
• Features built-in soft-start circuitry to limit inrush current during startup
• Includes comprehensive protection mechanisms such as over-current and thermal shutdown

Applications

• Portable electronic devices powered by single-cell lithium batteries
• Battery-operated consumer electronics requiring stable 5V logic levels
• Embedded systems with space-constrained PCB layouts

Procurement Notes

Verify the specific suffix BMJT2U against the manufacturer's latest datasheet to confirm pinout and functional equivalence. Ensure the ordering quantity aligns with the standard reel packaging requirements specified by ABLIC Inc. Cross-reference the RoHS compliance status with current environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when a compact buck controller is required for low-power applications. The SOT-23-5 package offers a small footprint suitable for dense designs. Consider the 250 mA output limit and 6.0 V maximum input voltage to ensure it meets the system's power budget and input source characteristics without exceeding operational limits.

Part Context

This part belongs to the S-8521 series of switching controllers from ABLIC Inc. The series focuses on providing efficient power management solutions for portable devices. The S-8521 family typically integrates essential control functions into a minimal external component count, facilitating rapid design implementation for manufacturers of mobile and battery-powered equipment.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing bill of materials before considering alternative sources.