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NCV890231: Automotive Switching Regulator, Buck, 2 A, 2 MHz

Overview
Specifications
Datasheet: Automotive Switching Regulator, Buck, 2 A, 2 MHz
Rev. 2 (151kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview
产品说明
The NCV890231 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 32 V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890231 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. Two pins are provided to synchronize switching to a clock, or to another NCV890231. The NCV890231 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.
特性   优势
     
  • 2 MHz Free-running Switching Frequency
 
  • Enables to use small size, low cost inductor and EMC filter
  • Internal N-Channel Power Switch
 
  • Fewer external components
  • Low VIN Operation Down to 4.5 V
 
  • Maintains operation during battery transients
  • High VIN Operation to 32 V
 
  • Maintains operation during battery transients
  • Withstands Load Dump to 45 V
 
  • Protects the load from load dump
  • Logic level Enable Input Can be Directly Tied to Battery
 
  • Flexable enable
  • 1.4 A (min) Cycle-by-Cycle Peak Current Limit
 
  • Protects against over current faults
  • Short-Circuit Protection enhanced by Frequency Foldback
 
  • Protects against short circuits on the output
  • ±1.75% Output Voltage Tolerance
 
  • Highly accurate regulation.
  • Output Voltage Adjustable Down to 0.8 V
 
  • Suitable for a wide range of applications
  • 1.4 ms Internal Soft-Start
 
  • Limits inrush current
  • Thermal Shutdown (TSD)
 
  • Thermally protects IC
  • Auto-synchronizes with Other NCV890XX1 or to an External Clock
 
  • Tailored EMC response
应用   终端产品
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • Automotive
技术文档及设计资源
设计和开发工具 (1) 封装图纸 (1)
仿真模型 (3) 评估板文档 (5)
数据表 (1)  
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NV890231MWTXGEVB Active
Pb-free
High Frequency Buck Converter Evaluation Board
Avnet (2015-07-09) : 1
Mouser (2015-07-09) : 2
供货情况和样品
产品
状况
Compliance
具体说明
封装
MSL*
容器
预算价格 (1千个数量的单价)
类型
外形
类型
数量
NCV890231MWTXG Active
AEC Qualified
PPAP Capable
Pb-free
Automotive Switching Regulator, Buck, 2 A, 2 MHz DFN-10 485C 1 Tape and Reel 3000 $1.325
表面贴装器件的潮湿敏感度等级(MSL)(260°C回流温度时测量无铅,235°C回流温度时测量含铅)
市场订货至交货的时间(周) : 4 to 8
Digikey   (2015-07-09) : >1K
Datasheet: Automotive Switching Regulator, Buck, 2 A, 2 MHz
Rev. 2 (151kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview

Product Compliance Status Description Topology Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Active     Automotive Switching Regulator, Buck, 2 A, 2 MHz     Current Mode   4.5   45   Adjustable   2     Up to 2200   DFN-10 
Datasheet: Automotive Switching Regulator, Buck, 2 A, 2 MHz
Rev. 2 (151kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview
外形
485C   
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