R1225N362B-TR-FE

Overview

The R1225N362B-TR-FE is a step-down DC/DC controller IC from Nisshinbo Micro Devices. It operates with an input voltage range of 2.3V to 18.5V and features a switching frequency of 500kHz. The device supports PWM/VFM modes for light load efficiency. It is housed in a SOT-23-6 package and is RoHS compliant.

Feature Summary

• Step-down DC/DC controller architecture
• Supports PWM and VFM operation modes
• Optimized for light load efficiency

Applications

• Battery-powered portable electronics
• General-purpose step-down power supplies
• Embedded systems requiring efficient voltage regulation

Procurement Notes

Verify the specific suffix 'TR-FE' against official Nisshinbo documentation to confirm reel packaging and environmental compliance status. Ensure compatibility with required input voltage ranges and thermal management requirements for the SOT-23-6 package before integration into final designs.

Selection Notes

Select this component when a compact, high-frequency buck regulator is needed for inputs up to 18.5V. Consider its 500kHz switching frequency for smaller external passive components. Evaluate the need for VFM mode if low quiescent current at light loads is critical for battery life extension.

Part Context

This part belongs to the R1225N series of DC/DC converters by Nisshinbo Micro Devices. The series offers various output configurations and packages. The R1225N362B variant specifically denotes a step-down controller with defined electrical characteristics suitable for general consumer and industrial applications.

Replacement Considerations

Direct substitutes are not explicitly confirmed in public data. Similar Nisshinbo R1225N variants may offer compatible pinouts but require verification of internal control logic and switching frequencies. Cross-reference with other manufacturers' 500kHz buck controllers only after detailed parameter matching.