MAX869L

2A、限流型、高边P沟道开关,带有热关断

低电阻p沟道开关,为系统和USB提供可调节的、精确的限流保护


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说明

The MAX869L P-channel load switch features an accurate user-set current limit and low on-resistance. This switch is designed to protect your power source from shorts and surges by limiting current and preventing the system supply from being pulled low. The input voltage range is 2.7V to 5.5V.

The MAX869L features a 2A, 45mΩ switch controlled by a logic signal. Current-limit accuracy is ±21%, and can be set from 400mA to 2.4A using a single resistor.

The device has a low 12µA quiescent supply current, which reduces to 2µA max in shutdown. It features thermal-shutdown protection and a logic-signal output pin (active-low FAULT) that signals when there is an overcurrent or overtemperature condition.
MAX869L:典型工作电路 MAX869L:典型工作电路 放大+

关键特性

  • Very Small Footprint (16-pin QSOP is the same size as an 8-pin SO)
  • Low Resistance: 45mΩ at 3V
  • ±21%-Accurate, User-Set Current Limit
  • 12µA (typ) Quiescent Current
  • 0.01µA (typ) Shutdown Current
  • 0.04µA (typ) Leakage to Output when Switch is Off
  • 2.7V to 5.5V Input Range
  • Thermal Shutdown
  • Active-Low FAULT Output

应用

  • 手持式仪表(PDA、掌上电脑)
  • 笔记本电脑
  • 掌上电脑
  • 个人通信装置
  • 便携式医用仪表
  • 通用串行总线(USB)

请查看具体的参数规格 Current Limit and USB Power Switches (80)


Part NumberUSBPower SwitchesCurrent Limit
(mA)
Current Limit
(mA)
Fault IndicatorCurrent Limit Accuracy
(%)
Current Limit Set ByLowest Adj. Setting
(A)
RON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypminmaxSee Notes
MAX869L Yes120002000Yes15Resistor0.40.0382.75.5-40 to +85
QSOP/16
$2.26 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。
产品可靠性报告: MAX869L.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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