降压转换器,DC-DC,高能效,可调节输出电压,低波纹,1.7 MHz,1 A

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NCP1529 步降 DC-DC 转换器是一款单片集成电路,用于使用一个锂电池或三个碱性/镍镉/镍氢电池供电的便携式应用。该器件能够提供基于 0.9 V 至 3.9 V 可外部调节输出范围,或者 1.2 V 或 1.35 V 固定输出范围提供最高 1.0 A 的电流。它使用同步整流来提高能效和减少外部零部件数量。该器件还具有内置的 1.7 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。自动开关 PWM/PFM 模式提高了系统能效。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。NCP1529 采用节省空间的小型 2x2x0.5 mm UDFN6 封装和 TSOP-5 封装。

  • Battery powered applications power management
  • Power supply for processor with low core voltage
  • USB powered devices
  • Low Voltage DC rails power management
  • Cellular phones, smart phones, and PDAs
  • MP3 players and portable audio systems
  • 96% efficiency, 28 uA quiescent current, 0.3 uA shutdown current
  • 1.7 MHz switching frequency
  • Auto-switching between PWM and PFM mode at light load conditions
  • Adjustable output voltage from 0.9V to 3.9V
  • Best in class Low Ripple even in PFM mode

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NCP1529ASNT1G

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Lifetime

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Step-Down

Current Mode

2.7

5.5

0.9 to 3.9

1

96

1700

$0.345

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NCP1529MU12TBG

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Obsolete

CAD Model

Pb

A

H

P

UDFN-6

1

260

REEL

3000

N

Step-Down

Current Mode

2.7

5.5

1.2

1

86

1700

Price N/A

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NCP1529MUTBG

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Last Shipments

CAD Model

Pb

A

H

P

UDFN-6

1

260

REEL

3000

N

Step-Down

Current Mode

2.7

5.5

0.9 to 3.9

1

96

1700

Price N/A

More Details

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