R1225N332K-TR-FE

Overview

The R1225N332K-TR-FE is a step-down DC-DC controller IC manufactured by Nisshinbo Micro Devices. It supports an input voltage range of 2.3 V to 18.5 V and operates with PWM/VFM control modes. The device features a switching frequency of 180 kHz and is designed for single-output applications. It functions within a temperature range of -40°C to +85°C and is housed in a SOT-23W-6 package.

Feature Summary

• Supports wide input voltage range up to 18.5 V
• Integrates PWM and VFM control modes for efficiency
• Fixed 180 kHz switching frequency operation

Applications

• Step-down DC-DC power conversion circuits
• Battery-powered electronic devices
• General-purpose power management systems

Procurement Notes

Verify the specific suffix 'K' against official datasheets to confirm pinout or functional variations compared to other variants like 'C'. Ensure the SOT-23W-6 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before integration.

Selection Notes

Select this component when a buck controller with an 18.5 V maximum input rating is required. The fixed 180 kHz frequency simplifies external component selection. Consider the SOT-23W-6 package size constraints and the -40°C to +85°C operating temperature range for environmental suitability.

Part Context

This part belongs to the R1225N series of switching controllers from Nisshinbo Micro Devices. It is categorized under PMIC - Power Management ICs. The series includes various output voltage options, with this specific model configured for a fixed output setting as indicated by the part number structure.

Replacement Considerations

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