S-8520B29MC-AROT2G

Overview

The S-8520B29MC-AROT2G is a step-down DC-DC switching controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 180kHz and supports a maximum duty cycle of 100%. The device accepts an input voltage range of 2.5V to 16V and provides a single positive output configured for buck topology. It utilizes a transistor driver output stage without synchronous rectification or clock synchronization capabilities. The component is housed in a compact SOT-23-5 package (SC-74A/SOT-753) and is rated for operation within a temperature range of -40°C to 85°C.

Feature Summary

• Supports 100% maximum duty cycle for low dropout operation
• Integrated enable control feature for power management
• Fixed 180kHz switching frequency for external component optimization

Applications

• Battery-powered portable electronic devices
• General-purpose DC-DC conversion in consumer electronics
• Embedded systems requiring efficient voltage regulation

Procurement Notes

Verify the specific suffix 'AROT2G' against official ABLIC documentation to confirm exact marking codes and tape-and-reel specifications. Ensure compatibility with RoHS3 standards as indicated for the S-8520 series. Cross-reference the part number with authorized distributors to validate current production status and availability, as supply chain conditions may vary.

Selection Notes

Select this controller when a non-synchronous buck solution with a fixed 180kHz frequency is required. It is suitable for applications needing a wide input voltage range up to 16V and a fixed output voltage determined by external resistors. Consider the SOT-23-5 package size constraints and the absence of synchronous rectification when evaluating efficiency requirements compared to integrated regulator alternatives.

Part Context

This component belongs to the S-8520 series of DC-DC switching controllers from ABLIC Inc. The series is designed for general-purpose power management applications, offering a balance between performance and simplicity. The S-8520 family typically features robust protection mechanisms and flexible configuration options through external components, catering to various industrial and consumer markets.

Replacement Considerations

Direct substitutes within the S-8520 series include variants with different output voltages or package types, such as S-8520BxxMC-xxxxxG. Verify pinout compatibility and electrical parameters before substitution.