LM27762DSSR

LM27762DSSR is the tape-and-reel WSON-12 ordering code for the Texas Instruments LM27762 dual-output charge-pump regulator, listed as Active / Production in the datasheet package option addendum. From a 2.7 V to 5.5 V input it generates a positive output adjustable from 1.5 V to 5 V and a negative output adjustable from -1.5 V to -5 V, each at up to 250 mA, switching at 2 MHz typical with 390 µA typical quiescent current and 0.5 µA typical shutdown current; the post-regulating LDOs show dropout of 30 mV at 100 mA on the negative rail and 45 mV at 100 mA on the positive rail. The selection point is a split ± supply from one input rail: op-amp and codec rails in portable instruments, medical front ends and industrial sensing where two separate converters would cost more area and sequencing effort. Selection advice: budget the flying-capacitor value and the LDO headroom together - the negative rail accuracy depends on keeping the charge-pump output above the LDO dropout across load steps. Parameters verified against the TI LM27762 datasheet SNVSAF7 (package option addendum and electrical characteristics).