R1225N152K-TR-FE

Overview

The R1225N152K-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices Inc. It features an input voltage range of up to 18.5V and supports both PWM and VFM switching modes for efficient power conversion. The device provides a positive output configuration with a maximum duty cycle of 100%. Designed for compact applications, it operates within a temperature range of -40°C to +85°C. This component is classified as an active switching controller suitable for various electronic systems requiring regulated voltage reduction.

Feature Summary

• Supports dual switching modes including Pulse Width Modulation (PWM) and Variable Frequency Mode (VFM) for optimized efficiency across load conditions.
• Capable of handling input voltages up to 18.5V while providing a single positive output channel.
• Features a maximum duty cycle of 100%, allowing for low dropout operation in step-down applications.

Applications

• Portable electronic devices requiring efficient voltage regulation
• Battery-powered systems utilizing step-down power conversion
• General-purpose embedded electronics with moderate power requirements

Procurement Notes

Verify the specific suffix 'K' against official Nisshinbo documentation to confirm package type and tape/reel specifications. Ensure compatibility with system thermal requirements given the operating temperature range. Cross-reference the part number with authorized distributors to confirm current production status and avoid obsolete stock. Request updated datasheets to validate electrical characteristics prior to integration.

Selection Notes

Select this controller when an input voltage up to 18.5V is required for step-down applications. Consider the availability of both PWM and VFM modes for balancing noise and efficiency. Verify that the positive output configuration aligns with the target circuit design. Evaluate the thermal performance within the specified -40°C to +85°C range for the intended environment.

Part Context

This component belongs to the R1225N series of switching controllers from Nisshinbo Micro Devices. The series typically includes variants with different output voltages and package options. The R1225N152K-TR-FE specifically denotes a version with defined electrical parameters and packaging. It is distinct from other series like the R1580N LED drivers, serving primarily as a general-purpose DC/DC controller rather than a dedicated lighting driver.

Replacement Considerations

Consult official substitution guides for direct equivalents within the R1225N family. Verify pinout compatibility and electrical parameter overlaps before replacing with similar step-down controllers. No public substitute part numbers are confirmed in available data.