Dual outputs: one reference, two independent loads
The dual-series architecture means both outputs are derived from the same buried-Zener core, so they track each other over temperature and load. Each output is independently buffered and can source 150 mA. For a mixed-signal board with a 16-bit ADC on one channel and a precision DAC on the other, this eliminates the need for a second reference IC or a rail-splitter. The part is also adjustable up to 6 V via external resistors, though the fixed 5 V version (the -5 suffix) is the most common order. The exposed pad on the 16-MSOP-EP package is the primary thermal path — without proper soldering to a copper plane, the junction temperature derating at 150 mA output will limit ambient to well below 125°C.
Lifecycle and sourcing — active, no replacement needed
The LT6658BHMSE-5#PBF carries an Active product status from Analog Devices. That means the manufacturer is currently producing the part with no announced end-of-life or last-time-buy window. ROHS3 compliance is confirmed. For a BOM line that needs a dual, high-current precision reference, this part can be specified into new designs without worrying about a forced redesign cycle.