R1225N302K-TR-FE

$0.63

Description：18.5V INPUT PWM/VFM STEP-DOWN DC
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tape & Reel (TR)

SKU:4739a630912a Category: DC DC Switching Controllers Brand: Nisshinbo Micro Devices Inc.

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Product introduction

Product Detailed Parameters

Description：18.5V INPUT PWM/VFM STEP-DOWN DC
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tape & Reel (TR)
Output Type：PWM
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：2.3V ~ 18.5V
Frequency - Switching：180kHz
Duty Cycle (Max)：100%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6W
Grade：-
Qualification：-

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R1225N302K-TR-FE

Overview

The R1225N302K-TR-FE is a step-down DC/DC controller from Nisshinbo Micro Devices. It supports an input voltage range of 2.3 V to 18.5 V and operates with PWM or VFM control modes. The device features a fixed switching frequency of 180 kHz. It is housed in a SOT-23W-6 package and complies with RoHS standards. The operational temperature range spans from -40°C to +85°C.

Feature Summary

Supports both Pulse Width Modulation (PWM) and Variable Frequency Mode (VFM) for efficient load management.
Designed for high-voltage step-down applications with a wide input voltage tolerance.
Integrates internal compensation to simplify external component requirements.

Applications

Battery-powered portable electronics
Industrial control systems
Communication equipment power supplies

Procurement Notes

Verify the complete part number including suffixes such as TR-FE against official Nisshinbo documentation to ensure correct packaging and specifications. Confirm that the sourcing channel provides original components with traceable manufacturing dates. Cross-reference the datasheet revision to align with current design requirements and compliance standards.

Selection Notes

Select this controller when a wide input voltage range up to 18.5 V is required for buck conversion. The fixed 180 kHz frequency allows for optimized passive component sizing. Ensure the application environment stays within the specified -40°C to +85°C operating range. Consider the SOT-23W-6 package constraints for thermal management and PCB layout.

Part Context

This component belongs to the R1225N series of switching controllers by Nisshinbo Micro Devices. The series focuses on efficient power management solutions for various electronic devices. The specific model integrates control logic for external MOSFETs, distinguishing it from fully integrated switch regulators.