LM5050MKX-1/NOPB

LM5050MKX-1/NOPB is the tape-and-reel TSOT-23-6 ordering code for the Texas Instruments LM5050-1 ideal-diode ORing controller, listed as Active / Production in the datasheet package option addendum. The -1 and -2 versions are not interchangeable: on the -1, pin 1 is the VS pin, an auxiliary supply input for the bias supply and gate charge pump that lets the controller work from a 5 V input, while on the -2 pin 1 is an open-drain FET-test / nFAULT output, there is no VS pin, and the part needs more than 6 V at IN - a -2 does not drop into a -1 design. Every figure here is the -1 only: reverse threshold of -41 mV minimum, -28 mV typical and -16 mV maximum, regulation threshold of 4.4 mV minimum, 22 mV typical and 37 mV maximum at a 12 V input, gate-off current of 1.8 A typical and 2.8 A maximum, gate-off time of 486 ns typical, quiescent current of 0.4 mA typical and 0.72 mA maximum, over a 5 V to 75 V input range with 100 V transient tolerance. The selection point is low-loss ORing of redundant supplies in telecom, server and industrial power distribution, where it drives an external N-channel MOSFET instead of a lossy Schottky diode. Parameters verified against the TI LM5050-1 datasheet SNVS629 (package option addendum and electrical characteristics).