Converters | NCP1402

升压转换器，PFM，微功率，200 mA

Obsolete

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购买

概览

NCP1402 系列为单片微功率步升 DC-DC 转换器，特别适用于为基于一节或两节电池组供电的便携式设备。此类器件适用于启动 0.8 V 的电池电压，运行电压则低至 0.3 V 以下。此系列只需使用三个外部组件，即可实现实施高能效转换器的一种简单方式，能够在 Vin = 2.0 V，VOUT = 3.0 V 下提供高达 200 mA 的输出电流。每个器件均包含一个片上 PFM（脉频调制）、PFM 控制器、PFM 比较器、软启动、电压参比、反馈电阻、驱动器和带电流限值保护的功率 MOSFET 开关。另外，芯片启用功能可用于关闭转换器电源，延长电池寿命。NCP1402 器件系列采用薄型 SOT-23-5 封装，具有五种标准调节输出电压。还可以 100 mV 步级生产从 1.8 V 到 5.0 V 的其他电压。

  • Cellular Telephones
  • Pagers
  • Personal Digital Assistants (PDA)
  • Electronic Games
  • Portable Audio (MP3)
  • Camcorders
  • Digital Cameras
  • Handheld Instruments

  • Extremely Low Start-Up Voltage of 0.8 V
  • Operation Down to Less than 0.3 V
  • High Efficiency 85% (Vin = 2.0 V, VOUT = 3.0 V, 70 mA)
  • Low Operating Current of 30 µA (VOUT = 1.9 V)
  • Output Voltage Accuracy +/- 2.5%
  • Low Converter Ripple with Typical 30 mV
  • Only Three External Components Are Required
  • Chip Enable Power Down Capability for Extended Battery Life
  • Micro Miniature Thin SOT–23–5 Packages
  • Pb-Free Packages are Available

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Reference Price

NCP1402SN19T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

1.9

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN27T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

2.7

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN30T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

3

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN33T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

3.3

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN40T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

4

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN50T1G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

5

Up to 0.2

85

Up to 200

Price N/A

More Details

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