1.2V fixed output, 500mA LDO in 8-HTSOP-J
The BD12IA5WEFJ-E2: The BD12IA5WEFJ- is a positive fixed-output LDO from ROHM, delivering 1.2V at up to 500mA from a 5.5V max input rail. Maximum dropout is 0.6V at the full 500mA load — the input must stay at least 0.6V above 1.2V across the load range to maintain regulation. Quiescent current is 0.25 mA typical, with a maximum supply current of 500 µA; the part suits always-on or battery-backed rails where standby draw matters.
Protection and control for single-rail designs
Built-in over-current and over-temperature protection, plus a soft-start feature, cover the common fault modes in a point-of-load regulator. An Enable pin lets the system power down the output — useful for sequencing or sleep-mode power gating. Operating temperature range is -25°C to 85°C, which covers industrial and commercial environments but not extended automotive under-hood duty.
No official second-source or pin-compatible cross-reference is carried in the record; the part is single-sourced from ROHM.