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.