R1225N332D-TR-FE

Overview

The R1225N332D-TR-FE is a step-down DC/DC controller from Nisshinbo Micro Devices, designed for buck converter applications. It supports an input voltage range of 2.3 V to 18.5 V and operates with a switching frequency of 500 kHz. The device utilizes PWM/VFM control modes to optimize efficiency across varying load conditions. It is housed in a compact SOT-23W-6 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports wide input voltage range up to 18.5 V
• Integrates PWM and VFM control modes for efficiency optimization
• Operates at a fixed 500 kHz switching frequency
• Available in space-saving SOT-23W-6 package

Applications

• Battery-powered portable electronics
• General-purpose step-down power supplies
• Embedded system voltage regulation

Procurement Notes

Verify the specific suffix 'D' against the official datasheet to confirm pinout and functional compatibility. Ensure the required operating temperature range aligns with the -40°C to +85°C specification. Confirm that the SOT-23W-6 package footprint matches the target PCB design before finalizing procurement orders.

Selection Notes

Select this component when a buck controller with a 500 kHz frequency and 18.5 V maximum input is required. Consider the SOT-23W-6 package constraints for board space. Evaluate thermal performance requirements against the specified operating temperature range. Compare control mode options if variable frequency operation is preferred over the fixed 500 kHz setting.

Part Context

This part belongs to the R1225N series of switching controllers by Nisshinbo Micro Devices. The series focuses on efficient step-down conversion solutions. The R1225N332D variant specifically denotes the electrical characteristics and packaging configuration within this product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.