Controllers | NCP1571

低电压同步降压控制器

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概览

NCP1571 是一款低电压降压控制器。它为 DC–DC 电源方案提供控制，可基于较宽电流范围产生低至 0.980 V 的输出电压。基于 NCP1571 的方案基于 12 V 电压供电，输出派生自 2-7 V 电源。它包含使用 V2 控制方法的同步 NFET 降压稳压器所需的所有电路，可实现最快的瞬变响应和最佳总体调节。NCP1571 基于固定的内部 200 kHz 频率运行，采用 SO–8 封装。此器件提供欠压锁定保护、软启动、带延迟的电源正常检测和内置的自适应非覆盖特性。欠压锁定期间，NCP1571 控制器允许电源输出下移，为负载留出关断时间。这是 NCP1571 区别于该系列其他零件的运行特点。

  • 0.980 V +/- 1.0% Reference Voltage
  • V2™ Control Topology
  • 200 ns Transient Response
  • Programmable Soft Start
  • Power Good
  • Programmable Power Good Delay
  • 40 ns Gate Rise and Fall Times (3.3 nF Load)
  • Adaptive FET Non-Overlap Time
  • Fixed 200 kHz Oscillator Frequency
  • Undervoltage Lockout Holds Both Gate Outputs Low
  • On/Off Control Through Use of the COMP Pin
  • Overvoltage Protection through Synchronous MOSFETs
  • Synchronous N-Channel Buck Design
  • Dual Supply, 12 V Control, 2-7 V Power Source
  • Pb-Free Package is Available

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Package Type

Case Outline

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MSL Temp (°C)

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Container Qty.

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Topology

Phases

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VCC Min (V)

VCC Max (V)

fSW Typ (kHz)

Reference Price

NCP1571D

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

235

TUBE

98

N

-

1

V2

11.4

12.6

200

Price N/A

More Details

NCP1571DG

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

-

1

V2

11.4

12.6

200

Price N/A

More Details

NCP1571DR2

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

235

REEL

2500

N

-

1

V2

11.4

12.6

200

Price N/A

More Details

NCP1571DR2G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

-

1

V2

11.4

12.6

200

Price N/A

More Details

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