R1225N162B-TR-FE

$0.63

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

SKU:bd8b700c466b 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：500kHz
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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R1225N162B-TR-FE

Overview

The R1225N162B-TR-FE is a CMOS-based PWM step-down DC/DC converter controller manufactured by Nisshinbo Micro Devices. It features low supply current and integrates an oscillator with a PWM control circuit. The device operates as a positive output buck regulator within the R1225N series. It utilizes SOT-23-Wide-6 packaging and supports an operating temperature range of -40°C to +85°C. The component functions without synchronous rectification.

Feature Summary

CMOS-based architecture for efficient power management
Integrated oscillator and PWM control circuitry
Low supply current operation

Applications

Step-down DC-DC conversion in electronic circuits
Power management systems requiring PWM control
Positive output buck regulator designs

Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm internal parameter variations, as ordering suffixes may denote specific electrical characteristics or package variants. Ensure compatibility with external passive components for the intended switching frequency. Confirm that the non-synchronous design aligns with efficiency requirements for the target application load conditions.

Selection Notes

Select this controller when a dedicated PWM step-down solution is required rather than a complete integrated switcher. Consider the external MOSFET selection carefully due to the lack of built-in synchronous rectification. Evaluate thermal performance within the specified -40°C to +85°C range. Verify input voltage capabilities against the system's maximum supply levels before implementation.

Part Context

This component belongs to the R1225N series of switching controllers from Nisshinbo Micro Devices. The series focuses on CMOS technology for power management applications. The R1225N162B-TR-FE specifically addresses buck converter needs using pulse width modulation techniques. It serves as a core control element in discrete power supply architectures.