R1223N332H-TR-FE

$0.61

Description：13.2V INPUT PWM/VFM STEP-DOWN DC
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tape & Reel (TR)

SKU:696b545c2ab7 Category: DC DC Switching Controllers Brand: Nisshinbo Micro Devices Inc.

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Product introduction

Product Detailed Parameters

Description：13.2V 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 ~ 13.2V
Frequency - Switching：500kHz
Duty Cycle (Max)：100%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

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R1223N332H-TR-FE

Overview

The R1223N332H-TR-FE is a PWM/VFM step-down DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 13.2 V and features a fixed switching frequency of 500 kHz. The device supports a maximum duty cycle of 100% and provides a single output channel. It is designed for non-isolated buck converter topologies and functions within an operating temperature range of -40°C to +85°C. The component is housed in an SOT-23-5 package.

Feature Summary

Supports both PWM and VFM control modes for optimized efficiency across load ranges
Enables continuous conduction mode operation via 100% maximum duty cycle capability
Integrates synchronous rectification control logic for improved power conversion performance

Applications

Battery-powered portable electronic devices
General-purpose step-down power supply circuits
Embedded systems requiring efficient voltage regulation

Procurement Notes

Verify the specific suffix 'H' against official datasheets to confirm pinout and electrical characteristics, as suffixes often denote package or thermal variations. Ensure compatibility with external MOSFETs and passive components for the intended buck topology. Confirm RoHS compliance status through manufacturer documentation prior to integration into final assemblies.

Selection Notes

Select this controller when a fixed 500 kHz switching frequency is required for EMI management and compact passive sizing. The wide input voltage range suits applications powered by single-cell lithium-ion batteries or multi-cell configurations. Consider the SOT-23-5 footprint constraints and thermal requirements for high-current designs.

Part Context

This part belongs to the R1223N series of switching controllers from Nisshinbo Micro Devices. The series focuses on efficient power management solutions for mobile and industrial applications. The R1223N332H variant specifically addresses buck converter needs with integrated control logic, distinguishing it from complete regulator ICs by requiring external power switches.