同步降压稳压器,1 MHz,3.0 A

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NCP1593 是一款固定的 1 MHz 高输出电流同步 PWM 转换器,集成了低电阻、高压侧 P 沟道 MOSFET 和低压侧 N 沟道 MOSFET。NCP1593 采用内部补偿的电流模式控制,提供良好的瞬变响应,易于实施,并具有出色的环路稳定性。它可以调节 4.0 V 至 5.5 V 的输入电压、低至 0.6 V 的输出电压,并能提供高达 3 A 的负载电流。 NCP1593 包括一个内部固定开关频率 (FSW),以及一个内部软启动来限制涌流。其他特性包括逐周期电流限制、100% 占空比运行、短路保护、省电模式和高温关断。

  • +5Vin buck regulator

  • DVD Drives and HDD
  • Notebook Computing
  • Set-Top-Box (STB)

  • Wide Input Voltage Range: from 4.0 V to 5.5 V
  • Internal 90 mΩ High-Side P-Channel MOSFET and 70 mΩ Low-Side N-Channel MOSFET
  • Fixed 1 MHz Switching Frequency
  • Cycle-by-Cycle Current Limiting
  • Hiccup Mode Short-Circuit Protection
  • Overtemperature Protection
  • Internal Fixed SoftStart with External Adjustment
  • Start-up with Pre-Biased Output Load
  • Adjustable Output Voltage Down to 0.6 V
  • Auto Power Saving Mode During Light Load
  • 100% Duty Cycle Operation

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Reference Price

NCP1593AMNTWG

Active

CAD Model

Pb

A

H

P

DFN-10

1

260

REEL

3000

N

Step-Down

Current Mode

4

5.5

0.6 - 5.0

3

90

1000

$0.482

More Details

NCP1593BMNTWG

Active

CAD Model

Pb

A

H

P

DFN-10

1

260

REEL

3000

N

Step-Down

Current Mode

4

5.5

0.6 - 5.0

3

90

1000

$0.482

More Details

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