R1225N172B-TR-FE

$0.63

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

SKU:c66c805231c5 Category: DC DC Switching Controllers Brand: Nisshinbo Micro Devices Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

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：-

Download product information

R1225N172B-TR-FE

Overview

The R1225N172B-TR-FE is a positive output step-down DC-DC controller IC manufactured by Nisshinbo Micro Devices Inc. It operates with an input voltage range of 2.3 V to 18.5 V and supports a switching frequency of 500 kHz. The device utilizes PWM or VFM control modes for efficient power management. Designed for surface-mount applications, it is housed in a compact SOT-23W-6 package. The component functions as a buck regulator suitable for various portable electronic devices requiring stable voltage conversion.

Feature Summary

Supports wide input voltage range from 2.3 V to 18.5 V
Integrates PWM and VFM control modes for optimized efficiency
Fixed 500 kHz switching frequency for compact external component design
Housed in space-saving SOT-23W-6 package

Applications

Portable consumer electronics
Battery-powered devices
General-purpose step-down power supplies

Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and specifications. Confirm that the SOT-23W-6 package matches your PCB footprint requirements. Check official datasheets for thermal performance limits and recommended external inductor values. Ensure compliance with RoHS standards if required for your specific application environment.

Selection Notes

Select this controller when a wide input voltage range up to 18.5 V is required for buck applications. Consider the fixed 500 kHz frequency for balancing size and efficiency. Evaluate the SOT-23W-6 package constraints against available board space. Compare against other Nisshinbo series for specific current or efficiency needs.

Part Context

This component belongs to the R1225N series of switching controllers from Nisshinbo Micro Devices. The series focuses on providing flexible power management solutions for portable devices. The R1225N172B variant specifically addresses step-down regulation needs with integrated control logic.