S-8520B40MC-ARZT2G

Overview

The S-8520B40MC-ARZT2G is a step-down DC-DC switching regulator controller manufactured by ABLIC Inc. It operates with a fixed output voltage of 4.0V and supports a maximum switching frequency of 207kHz. The device features CMOS technology and delivers an output current capability of 0.05A. It is housed in a compact SOT-23-5 (SC-74A) surface-mount package, designed for efficient power management in space-constrained applications.

Feature Summary

• Integrated PWM/PFM switchable control architecture for optimized efficiency across load conditions
• Compact SOT-23-5 surface-mount packaging for space-efficient board layouts
• CMOS process technology ensuring low power consumption and high reliability

Applications

• Portable electronic devices requiring step-down voltage regulation
• Battery-powered systems needing efficient power management
• General-purpose DC-DC conversion in consumer electronics

Procurement Notes

Verify the exact suffix ARZT2G against the manufacturer's official datasheet to confirm pinout and electrical specifications. Confirm RoHS compliance status through the latest environmental documentation provided by ABLIC Inc. Ensure the component matches the required operating temperature range of -40°C to 85°C for your specific application environment before procurement.

Selection Notes

Select this controller when a fixed 4.0V output is required from a higher input voltage rail. The 207kHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 0.05A output limit to ensure it meets the load requirements of the target circuit without exceeding thermal or current limits.

Part Context

This component belongs to the S-8520 series of step-down switching regulator controllers from ABLIC Inc. The series is characterized by its ability to switch between PWM and PFM modes, offering flexibility in efficiency optimization. The S-8520B40MC variant specifically provides a fixed 4.0V output, distinguishing it from adjustable or other fixed-voltage versions within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing design parameters if considering alternative manufacturers.