MIC2039 Datasheet | Microchip Technology

Features - ±5% Current-Limit Accuracy - Input Supply Range from 2.5V to 5.5V - Low Quiescent Current: 100 µA Typical (Switch ON) - 75 mΩ Typical RDS(ON) at 5V - 0.2A to 2.5A Adjustable Output Current - Kickstart: Momentary Secondary Current-Limit Threshold (120 ms period) - Soft-Start Functionality - Undervoltage Lockout (UVLO) - Fast 10 µs Short-Circuit Response Time (Non-Kickstart Options) - Fault Status Output Flag - Logic Controlled Enable (Active-High, Active-Low) - Thermal Shutdown - Pin patible with MIC2009/MIC2019 - 6-Pin 2 mm x 2 mm UDFN and 6-Pin SOT-23 Packages - Junction Temperature Range from - 40°C to +125°C Applications - USB Peripherals and USB 2.0/3.0-patible - DTV/STB - Notebooks and Consumer Electronics - General Purpose Power Distribution General Description The MIC2039 is a high-side MOSFET power distribution switch that provides increased system reliability by using 5% current-limit accuracy. The MIC2039 has an operating input voltage range from 2.5V to 5.5V, is internally current-limited, and has thermal shutdown to protect the device and system. The MIC2039 is offered with either active-high or active-low logic level enable input controls. It has an open drain fault status output flag with a built-in 32 ms delay that asserts low during overcurrent or thermal-shutdown conditions. The MIC2039 features an adjustable output current limit that is resistor-programmable from 0.2A to 2.5A. The MIC2039 also offers a unique kickstart feature that allows momentary high-current surges up to the secondary current limit (ILIMIT_2nd) during startup or while operating in steady-state. This is useful for charging loads with high inrush currents, such as capacitors. After an overcurrent condition is established, these switches enter into a constant current-limit mode unless the die temperature exceeds the thermal-shutdown specification. The MIC2039 is available in 6-pin SOT-23 and 6-pin 2 mm x 2 mm UDFN packages. The MIC2039 has an operating junction...