Converters | NCV890101

汽车开关稳压器，降压，1.2 A，2 MHz

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概览

NCV890101 是一款固定频率、单片式、降压开关稳压器，用于必须在最高 36 V 的输入电压下运行的汽车、电池联接应用。该稳压器适用于具有低噪声和小外形要求的系统，通常汽车驱动器信息系统有此要求。NCV890101 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。提供两个引脚与时钟或另一个 NCV890101 进行同步开关。NCV890101 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。另外，该开关频率即使在使用小电感器值和全陶瓷输出滤波器电容的情况下也会产生低输出电压波纹，因此形成空间高效的开关稳压器方案。

  • 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
  • Auto-synchronizes with Other NCV890101 or to an External Clock
  • Logic level Enable Input Can be Directly Tied to Battery
  • 1.4 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 ms Internal Soft-Start
  • Thermal Shutdown (TSD)
  • Low Shutdown Current
  • NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls
  • Wettable Flanks DFN
  • This is a Pb-Free Device

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MSL Temp (°C)

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Control Mode

VCC Min (V)

VCC Max (V)

VO Typ (V)

IO Typ (A)

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fSW Typ (kHz)

Reference Price

NCV890101MWTXG

Contact Sales

Last Shipments

CAD Model

Pb

A

H

P

DFN-10

485C

1

260

REEL

3000

N

Step-Down

Current Mode

4.5

40

Adjustable

1.2

-

2200

Price N/A

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