文档介绍：TPS77101/115/118/127/128/133/150 WITH RESET OUTPUT
TPS77201/215/218/227/228/233/250 WITH POWER GOOD OUTPUT
150-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING
SLVS225D – FEBRUARY 2000 – REVISED OCTOBER 2000
D
Open Drain Power-On Reset With 220-ms TPS771xx
Delay (TPS771xx) DGK Package
D Open Drain Power-Good (PG) Status (TOP VIEW)
Output (TPS772xx)
FB/SENSE 8 OUT
D 1
150-mA Low-Dropout Voltage Regulator RESET 2 7 OUT
D Available in -V, -V, -V, -V, -V, EN 3 6 IN
-V Fixed Output and Adjustable Versions GND 4 5 IN
D Dropout Voltage Typically 115 mV
at 150 mA (TPS77133, TPS77233) TPS772xx
D Ultralow 92-µA Quiescent Current (Typ) DGK Package
(TOP VIEW)
D 8-Pin MSOP (DGK) Package
FB/SENSE 1 8 OUT
D Low Noise (55 µVrms) Without External
Filter (Bypass) Capacitor (TPS77118, PG 2 7 OUT
TPS77218) EN 3 6 IN
GND
D 2% Tolerance Over Specified Conditions 4 5 IN
for Fixed-Output Versions
TPS77x33
D Fast Transient Response DROPOUT VOLTAGE
D Thermal Shutdown Protection vs
JUNCTION TEMPERATURE
300
description
The TPS771xx and TPS772xx are low-dropout 250
regulators with integrated power-on reset and
power good (PG) function respectively. These 200
devices are capable of supplying 150 mA of output IO = 150 mA
current with a dropout of 115 mV (TPS77133,
150
TPS77233). 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 100
wide range of output capacitors including low ESR IO = 10 mA
ceramic (10 µF) or low capacitance (1 µF) – mV – Dropout Voltage 50
I = 0 A
DO O
tantalum capacitors. These devices have ex- V
tremely low noise output performance (55 µV )
rms 0
without using any added filter capacitors.
TPS771xx and TPS772xx are designed to have
fast transient response for larger load current –50
–40 0 40 80 120 160
changes.
TJ – Junction Temperature –°C
The TPS771xx or TPS772xx is offere