WMSIC Electronic Components

NISSHINBO NJW1933F1-AT-TE2

ModelNJW1933F1-AT-TE2
PackageSOT-23-6
BrandNISSHINBO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
NISSHINBO NJW1933F1-AT-TE2
Type
NISSHINBO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NISSHINBO
Electronic Component
NJW1933F1-AT-TE2
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.051g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264911010
Operating Temperature
40℃~+105℃
Operating Voltage
4.5V~40V
Switching Frequency
500kHz
Electronic Component
Electronic Component
Output Voltage
1.25V~40V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

NJW1933F1-AT-TE2 产品概述

一、概述

NJW1933F1-AT-TE2 是 NISSHINBO 推出的降压型开关稳压器,采用降压拓扑、内置开关管、SOT-23-6 封装,适用于输入电压范围宽(4.5V~40V)、输出可调(1.25V~40V)的低功耗降压场合。器件开关频率为 500kHz,连续输出电流可达 600mA,静态电流仅 2.2mA,工作温度范围 -40℃~+105℃。器件不采用同步整流,因此需外接整流二极管(建议低正向压降的肖特基二极管)。

二、主要特性

  • 输入电压:4.5V ~ 40V
  • 输出电压:1.25V ~ 40V(可调)
  • 输出电流:最大 600mA
  • 开关频率:500kHz(内部固定)
  • 静态电流(Iq):2.2mA
  • 内置开关晶体管,简化外围设计
  • 支持可调软启动、可调限流与过流保护
  • 非同步整流(需外接肖特基二极管)
  • 封装:SOT-23-6;工作温度:-40℃ ~ +105℃

三、典型应用

  • 汽车电子(车载电源模块、传感器供电)
  • 工业控制、通信设备的局部降压电源
  • 电池供电系统、便携设备稳压
  • LED 驱动及各种中小功率降压场景

四、设计要点与建议

  • 整流器件:由于为非同步整流拓扑,推荐选用低 Vf、低反向恢复的肖特基二极管(额定电流 ≥ 设备输出电流并有余量)。
  • 电感选择:选择在工作电流下饱和电流(Isat)有足够裕量的电感,建议 Isat ≥ 1.5×预计峰值电流,且 DCR 尽可能低以降低功耗。500kHz 频率下常用片式功率电感。
  • 滤波电容:输入电容应为低 ESR 的陶瓷电容(X5R/X7R),并在靠近器件 VIN 与 GND 布局。输出电容根据所需输出纹波与瞬态响应选择,常用 10µF~100µF 组合(陶瓷 + 钽/电解)以平衡稳定性与纹波。
  • 布局要点:开关节点(SW)走线要短、粗,SW 与二极管、电感的接线距离尽量短以减小 EMI。器件地需为单点或多点合理接地,输入电容与器件 VIN、GND 直接旁路。
  • 热管理:SOT-23-6 封装散热有限,高负载或高输入压降时需评估芯片功耗并留足散热裕量,必要时增加铜箔散热并保证合适的 PCB 走线面积。

五、保护与可调功能

器件提供可调软启动功能,可通过外部元件设置上电斜率,抑制浪涌电流及输出过冲。可调限流与过流保护用于防止短路或过载状态,提升系统可靠性。具体设置方法及限值请参考器件数据手册以确定外接电阻/电容的取值与行为曲线。

六、封装与采购

  • 型号:NJW1933F1-AT-TE2
  • 品牌:NISSHINBO
  • 封装:SOT-23-6,适合空间受限的应用
  • 订购与详细规格、典型特性曲线和应用电路请参见官方数据手册与参考设计资料。

注意:本文为产品概述与设计建议,实际电路设计请以官方数据手册为准,并在原型验证中测试器件在目标工况下的热、电性能与稳定性。

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