FEATURES
· Controlled Baseline
– One Assembly
– One Test Site
– One Fabrication Site
· Extended Temperature Performance of –55°C
to 125°C
· Enhanced Diminishing Manufacturing
Sources (DMS) Support
· Enhanced Product-Change Notification
· Qualification Pedigree (1)
· Open-Drain Power-Good (PG) Status Output
· Available in 1.5-V, 1.8-V, 2.7-V, 2.8-V, 3.3-V,
5-V Fixed-Output and Adjustable Versions
· Dropout Voltage Typically 200 mV at 250 mA
· Ultralow 92-mA Quiescent Current (Typ)
· 8-Pin MSOP (DGK) Package
· Low Noise (55 mVrms) Without an External
Filter (Bypass) Capacitor
· 2% Tolerance Over Specified Conditions For
Fixed-Output Versions
· Fast Transient Response
· Thermal Shutdown Protection
· See the TPS779xx Family of Devices for
Active-High Enable

DESCRIPTION
The TPS77401 is a low-dropout (LDO) regulator with power good (PG) function. This device is capable of
supplying 250 mA of output current with a dropout of 200 mV. Quiescent current is 92 mA at full load dropping
down to 1 mA when device is disabled. This device is optimized to be stable with a wide range of output
capacitors including low-ESR ceramic (10-mF) or low-capacitance (1 mF) tantalum capacitors. This device has
extremely low noise output performance (55 mVrms) without using any added filter capacitors. The TPS77401 is
designed to have fast transient response for larger load current changes.
The TPS77401 is offered in 1.5-V, 1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5-V fixed-voltage versions and in an
adjustable version (programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line,
load, and temperature ranges. The TPS77401 device is available in an 8-pin mini small-outline package (MSOP)
(DGK).