2A、限流型、高边P沟道开关，带有热关断

 

器件号	Replacement	Explanation

说明

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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 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)