MAX38890AEVKIT#

MAX38890AEVKIT# is a MAX38890A evaluation kit (EV kit). It evaluates the MAX38890 supercapacitor backup regulator, which is designed to transfer power between a supercapacitor and a system supply rail. When the main battery is present and the system voltage is above the minimum system voltage for charging, the MAX38890 charges the supercapacitor with a maximum average current of 2.5A. Once the supercapacitor is charged, the circuit draws only 4μA of current while it maintains the supercapacitor in its ready state. When the main battery is removed, the MAX38890 draws power from the supercapacitor and regulates the system voltage to the set backup voltage with a programmed maximum peak inductor current of 5A. The MAX38890 is externally programmable for maximum supercapacitor voltage, system backup voltage, peak charging, and backup inductor currents.

• 2.5V to 5.5V system output voltage range
• 0.5V to 5.5V supercapacitor voltage range
• Maximum 5A peak inductor current limit for charging and backup modes
• Resistor adjustable VSYS, VCAP voltages
• Resistor adjustable charging and backup currents
• Proven two-layer, 2oz copper PCB layout
• Demonstrates compact solution size
• Fully assembled and tested