MIC2039AYMT-TR

MIC2039AYMT-TR is a high-accuracy, high-side, adjustable current-limit power switch. This is a is a high-side MOSFET power distribution switch that provides increased system reliability by using 5% current-limit accuracy. This 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 32ms delay that asserts low during overcurrent or thermal-shutdown conditions. This also offers a unique kickstart feature that allows momentary high-current surges up to the secondary current limit (ILIMIT-2nd) during start-up or while operating in steady-state. This is useful for charging loads with high inrush currents, such as capacitors. Applications include USB peripherals and USB 2.0/3.0-compatible, DTV/STB, notebooks and consumer electronics, general purpose power distribution.

• 2.5 to 5.5V input voltage range (VIN = VEN = 5V, CIN = 1 µF; TJ = +25°C)
• 100µA typical low quiescent current (switch ON)
• 100mohm typical switch on-resistance (VIN = 2.5V, IOUT = 350mA)
• 0.2A to 2.5A adjustable output current range
• Momentary secondary current-limit threshold (120ms period) kickstart
• Soft-start functionality, undervoltage lockout (UVLO), active-high enable
• Fault status output flag, logic controlled enable (active-high, active-low)
• Thermal shutdown, pin compatible with MIC2009/MIC2019
• 0.75µA typical supply current (switch off, active-high enable (A): VEN = 0V, VIN = 5V, IOUT = 0A)
• 6 lead UDFN package, temperature range from -40°C to +125°C