Converters | NCP1523B

降压转换器，DC-DC，高能效，可调节输出电压，3 MHz，600 mA

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NCP1523 步降 PWM DC-DC 转换器，用于使用 1 个锂电池或 3 个碱性/镍镉/镍氢电池供电的便携式应用。该器件提供 0.9 V 至 3.3 V 的可调输出电压范围。它使用同步整流来提高能效和减少外部零件数量。该器件还具有内置的 3 MHz（标称）振荡器，允许使用较小的感应器和电容器，从而减小部件尺寸。NCP1523 提供自动开关 PWM/PFM (NCP1523FCT2G)，提高了系统能效，还具有提供极高能效负载瞬变方案的仅 PWM 模式 (NCP1523BFCT2G)。其他功能包括集成的软启动、按周期电流限制和高温关断保护等。NCP1523 采用节省空间的 8 引脚芯片级封装。

  • Power supply for application processor
  • Power supply for processor with low core voltage

  • Cellular phones, smart phones, and PDAs
  • MP3 players and portable audio systems
  • Digital still cameras and video cameras

  • Up to 93% Efficiency, 60 uA Quiescent Current, Shutdown Current Consumption of 0.3 A
  • Auto-switching between PWM and PFM mode at light load conditions (NCP1523FCT2G)
  • PWM mode operation (NCP1523BFCT2G)
  • Adjustable output voltage from 0.9V to 3.3V

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NCP1523BFCT2G

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Pb

A

H

P

Flip-Chip-8

766AE

1

0

DSFTP

3000

N

Step-Down

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2.7

5.5

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0.6

93

3000

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