The CWR-500 (Qfn) is a 6x6 QFN RoHS-compliant power management integrated circuit (PMIC) manufactured by Celfras. It is designed for battery management, providing supporting functions such as boost, buck, and buck-boost voltage regulation, regulating current to protect battery life, monitoring voltage and temperature levels, and supplying power to other parts of the system. The CWR-500 also offers low quiescent current, overvoltage protection, thermal protection, and can be adjusted to operate in a wide input voltage range. The parts are fast-switching, reliable, and offer programming flexibility.