ZHCSJY0B June 2012 – June 2019 LMR12015 , LMR12020
PRODUCTION DATA.
The LMR12015/20 employs frequency foldback to protect the device from current run-away during output short-circuit. Once the FB pin voltage falls below regulation, the switch frequency will smoothly reduce with the falling FB voltage until the switch frequency reaches 220 kHz (typ). If the device is synchronized to an external clock, synchronization is disabled until the FB pin voltage exceeds 0.53V