MAX891L是Maxim美信半导体公司的一款USB产品产品，MAX891L是限流型、高边P沟道开关，带有热关断，本站介绍了MAX891L的封装应用图解、特点和优点、功能等，并给出了与MAX891L相关的Maxim元器件型号供参考。
MAX891L - 限流型、高边P沟道开关，带有热关断 - USB产品 - 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 - 美信半导体
The MAX891L/MAX892L smart, low-voltage, P-channel, MOSFET power switches are intended for high-side load-switching applications. These switches operate with inputs from 2.7V to 5.5V, making them ideal for both 3V and 5V systems. Internal current-limiting circuitry protects the input supply against overload. Thermal-overload protection limits power dissipation and junction temperatures.
The MAX891L/MAX892L's maximum current limits are 500mA and 250mA, respectively. The current limit through the switch is programmed with a resistor from SET to ground. When the switch is on, the quiescent supply current is a low 13µA. When the switch is off, the quiescent current decreases to 0.1µA.
The MAX891L/MAX892L are available in 8-pin µMAX® packages.
