R1225N182A-TR-FE

$0.63

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

SKU:4f64292a7fb2 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：300kHz
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

R1225N182A-TR-FE

Overview

The R1225N182A-TR-FE is a positive output step-down DC-DC controller IC manufactured by Nisshinbo Micro Devices. It supports an input voltage range up to 18.5V and provides a fixed 1.8V output. The device integrates PWM and VFM control modes for optimized efficiency across varying load conditions. It is housed in a compact SOT-23-6W package, suitable for surface-mount applications.

Feature Summary

Integrates Pulse Width Modulation (PWM) and Variable Frequency Mode (VFM) control strategies
Designed for non-isolated buck converter topologies with fixed output regulation
Supports external high-side and low-side NMOS driver interfaces

Applications

Battery-powered portable electronic devices
General-purpose step-down power supply circuits
Embedded systems requiring regulated lower voltage rails

Procurement Notes

Verify the specific suffix 'TR-FE' against the manufacturer's official datasheet to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering part number matches the exact pinout and thermal pad configuration required for the target PCB layout. Cross-reference the component marking code with the latest production documentation to avoid counterfeit or obsolete variants.

Selection Notes

Select this component when a fixed 1.8V output is required from an input source up to 18.5V. It is appropriate for designs prioritizing cost-efficiency over adjustable output flexibility. Consider the external MOSFET selection carefully, as the controller drives discrete switches rather than integrating them internally. Evaluate thermal dissipation requirements based on the expected load current and ambient operating temperature.

Part Context

This part belongs to the R1225N series of switching controllers within the Nisshinbo PMIC portfolio. It serves as a core power management solution for converting higher bus voltages to stable logic-level supplies. The series is characterized by its robust input voltage handling and compatibility with standard surface-mount assembly processes.