升压转换器,PFM,DC-DC,25 V,25 mA

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NCP1406 是一款单片 PFM 步升 DC-DC 转换器。 此器件适用于对一个锂电池或两个 AA/AAA 电池进行升压,最高可达 25 V(使用内部 MOSFET)输出,适用于手持应用。 此器件中内置了上拉芯片启用功能,可延长电池寿命。 除了标准升压转换器拓扑结构,该器件还可针对电压反向和步降应用进行配置。 此器件采用节省空间的 TSOP-5 封装。 该器件占位小,还适用于从 3.3 V 或 5.0 V 电源轨产生升高的电压。

  • LCD Bias
  • White LED Driver
  • OLED Driver
  • Personal Digital Assistants (PDA)
  • Digital Still Camera
  • Cellular Telephone
  • Hand-held Games
  • Handheld Instrument
  • 85% Efficiency at VOUT = 25 V, IOUT = 25 mA, VIN = 5.0 V
  • Low Operating Current of 15 µA (Not Switching)
  • Low Shutdown Current of 0.3 µA
  • Low Start−up Voltage of 1.8 V Typical at 0 mA
  • Output Voltage up to 25 V with Built−in 26 V MOSFET Switch
  • PFM Switching Frequency up to 1.0 MHz
  • Chip Enable
  • Feedback Pin Open/Short Circuit Protection
  • Input Undervoltage Lockout
  • Output Voltage Soft-Start
  • Thermal Shutdown
  • Low Profile and Minimum External Parts
  • Micro Miniature TSOP-5 Package
  • Pb-Free Package is Available

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NCP1406SNT1G

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Step-Up

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1.4

5.5

Up to 25

0.025

85

Up to 1000

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