汽车开关稳压器,降压,2.0 A,2 MHz,重置,可调延迟

Obsolete

概览

NCV890203 是一款固定频率、单片降压开关稳压器,适合必须由高达 36 V 输入电源供电的汽车、与电池联接的应用。此款稳压器适用于汽车驾驶员信息系统中经常遇到的要求低噪声、体积小巧的系统。NCV890203 能够将典型的 4.5 V 到 18 V 汽车输入电压以高于敏感的 AM 频带的恒定开关频率转换为低至 3.3 V,无需成本高昂的滤波器和 EMI 应对措施。当输出正在调节时,重置引脚发出信号,还提供一个引脚调节 RSTB 信号进入高电平之前的延迟。NCV890203 还提供汽车电源系统中应具有的若干保护功能,如电流限值、短路保护和高温关断。此外,高开关频率产生低输出电压纹波,即使使用小电感值和全陶瓷输出滤波电容,从而打造出了一个节省空间的开关稳压器方案。

  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation

  • Automotive

  • Internal N−Channel Power Switch
  • Low VIN Operation Down to 4.5 V
  • High VIN Operation to 36 V
  • Withstands Load Dump to 40 V
  • 2 MHz Free−running Switching Frequency
  • Reset with Adjustable Delay
  • Logic level Enable Input Can be Directly Tied to Battery
  • 2.2 A (min) Cycle−by−Cycle Peak Current Limit
  • Short Circuit Protection enhanced by Frequency Foldback
  • ±1.75% Output Voltage Tolerance
  • Output Voltage Adjustable Down to 0.8 V
  • 1.4 Millisecond Internal Soft−Start
  • Thermal Shutdown (TSD)
  • Low Shutdown Current
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
  • Wettable Flanks DFN (pin edge plating)
  • These Devices are Pb−Free and are RoHS Compliant

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NCV890203MWTXG

Obsolete

CAD Model

Pb

A

H

P

DFN-10

1

260

REEL

3000

N

Step-Down

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4.5

40

Adjustable

2

-

2000

Price N/A

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