Controller IC Chip - Fujitsu MB39A13239A132 DC/DC charging QFN-32 chip for laptop - Integrated chip for laptop computer (Code 1-CHIP0134) MB39A132, used for charging Li-ion batteries, is a synchronized corrective DC/DC converter IC with pulse charging technology (PCM). It can control the charging voltage and the charging current separately and supports the N-channel MOS driver. Additionally, the MB39A132 is suitable for drop-out. It features a comparator for AC load detection, which is independent of the control of the DC/DC converter and can monitor the voltage supply source in the system. It supports a wide range of input voltages, allows low power consumption in standby mode, and can precisely control both the charging voltage and the charging current, ideal for the embedded Li-ion charger used in devices such as notebook PCs. Please check the model number in our description as well as our photo. You will receive the chip in a sealed transparent bag.