LTC4040IUFD#PBF IC-4040 PWR MGMT MULTI-CHEM 24QFN The LTC4040IUFD#PBF is a high-quality product offering IC-4040 PWR MGMT MULTI-CHEM 24QFN. With a shrink ratio of N/A and -40°C~+125°C operating temperature, it provides reliability in various applications.