Open Drain Power-On Reset With 220-ms
Delay (TPS773xx)
Open Drain Power-Good (PG) Status
Output (TPS774xx)
250-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.6-V (TPS77316 Only),
1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output
and Adjustable Versions
Dropout Voltage Typically 200 mV
at 250 mA (TPS77333, TPS77433)
Ultralow 92-μA Quiescent Current (Typ)
8-Pin MSOP (DGK) Package
Low Noise (55 μVrms) Without an External
Filter (Bypass) Capacitor (TPS77318,
TPS77418)
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 TPS773xx and TPS774xx are low-dropout
regulators with integrated power-on reset and
power good (PG) function respectively. These
devices are capable of supplying 250 mA of output
current with a dropout of 200 mV (TPS77333,
TPS77433). Quiescent current is 92 μA at full load
dropping down to 1 μA when device is disabled.
These devices are optimized to be stable with a
wide range of output capacitors including low ESR
ceramic (10 μF) or low capacitance (1 μF)
tantalum capacitors. These devices have extremely
low noise output performance (55 μVrms)
without using any added filter capacitors.
TPS773xx and TPS774xx are designed to have
fast transient response for larger load current
changes.
The TPS773xx or TPS774xx is offered in 1.5-V, 1.6 V (TPS77316 only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5.0-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 TPS773xx and TPS774xx families are
available in 8-pin MSOP (DGK) packages.