TPS77301/315/316/318/327/328/333/350 WITH RESET OUTPUT
TPS77401/415/418/427/428/433/450 WITH POWER GOOD OUTPUT 250-mA LD...
TPS77301/315/316/318/327/328/333/350 WITH RESET OUTPUT
TPS77401/415/418/427/428/433/450 WITH POWER GOOD OUTPUT 250-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING
SLVS281E – FEBRUARY 2000 – REVISED JULY 2001
D Open Drain Power-On Reset With 220-ms
Delay (TPS773xx)
D Open Drain Power-Good (PG) Status
Output (TPS774xx)
D 250-mA Low-Dropout
Voltage Regulator D 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
D Dropout
Voltage Typically 200 mV
at 250 mA (TPS77333, TPS77433)
D Ultralow 92-µA Quiescent Current (Typ) D 8-Pin MSOP (DGK) Package D Low Noise (55 µVrms) Without an External
Filter (Bypass) Capacitor (TPS77318, TPS77418)
D 2% Tolerance Over Specified Conditions
For Fixed-Output Versions
D Fast Transient Response D Thermal Shutdown Protection D See the TPS779xx Family of Devices for
Active High Enable
FB/SENSE RESET EN GND
FB/SENSE PG EN
GND
TPS773xx DGK Package
(TOP VIEW)
1
8
2
7
3
6
4
5
TPS774xx DGK Package
(TOP VIEW)
1
8
2
7
3
6
4
5
OUT OUT IN IN
OUT OUT IN IN
TPS77x33 DROPOUT
VOLTAGE
vs JUNCTION TEMPERATURE
300
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...