Enhanced product, cap-free NMOS, 400-mA low-dropout regulator with reverse current protection

The TPS736xx-EP

family of low-dropout (LDO) linear voltage regulators uses a new topology—an NMOS

pass element in a voltage-follower configuration. This topology is stable using

output capacitors with low ESR and allows operation without a capacitor. This family

also provides high reverse blockage (low reverse current) and ground-pin current

that is nearly constant over all values of output current.

The TPS736xx-EP uses an advanced

BiCMOS process to yield high precision while delivering low dropout voltages and low

ground-pin current. Current consumption, when not enabled, is under 1µA and ideal

for portable applications. The low output noise (30µVRMS with 0.1µF

CNR) is ideal for powering VCOs. These devices are protected by

thermal shutdown and foldback current limit.