The TPS7A37 family of linear low-dropout
(LDO) voltage regulators uses an NMOS pass element in a
capacitor voltage-follower configuration. This topology is
relatively insensitive to output capacitor value and ESR,
allowing a wide variety of load configurations. Load transient
response is excellent, even with a small 1μF ceramic output
capacitor. The NMOS topology also allows very low dropout. The
TPS7A37 family uses an advanced BiCMOS process to yield high
precision while delivering very low dropout voltages and low
ground pin current. Current consumption, when not enabled, is
under 20nA and excellent for portable applications. These
devices are protected by thermal shutdown and foldback current
limit.