TPS77450DGKG4 Description
The TPS773xx and TPS774xx are low-dropoutregulators with integrated power-on reset andpower good (PG) function respectively. Thesedevices 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 awide range of output capacitors including low ESRceramic (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 havefast transient response for larger load currentchanges.
TPS77450DGKG4 Features
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
TPS77450DGKG4 Applications
? Motorantriebe
? Motordrives
? Servodrives
