UP1589Q, UP1589QQKF QFN20

UP1589Q, UP1589QQKF

UP1589Q Datasheet – Laptop IC For Power Supply Controller

The UP1589Q is a dual step down, Switch Mode Power Supply (SMPS) controller which generates logic supply voltages for battery powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V and also two fixed 5V/3.3V linear regulators. One of the controllers (LDO5) provides automatic switch over to the BYP1 input connected to the main SMPS1 output for maximized efficiency.