High-side switch with adjustable current limit
The MAX892LEUA+ is a single-channel, high-side P-channel power switch for general-purpose load switching. It delivers up to 250 mA continuous output with a typical on-resistance of 250 mOhm, operating from a load voltage range of 2.7 V to 5.5 V and requiring no separate Vcc supply. Key protection features include adjustable current limiting and over-temperature shutdown. The current limit is set with an external resistor, giving the designer control over the trip threshold per load. A status flag output reports fault conditions such as over-current or thermal shutdown, useful for system monitoring. The switch is controlled by a simple On/Off logic input with non-inverting polarity, making it straightforward to interface with a GPIO from an MCU or system controller.
Housed in an 8-pin uMAX/uSOP package (3.00 mm width, 0.118" pitch), the MAX892LEUA+ is a surface-mount device. The supplier device package is designated 8-uMAX/uSOP.