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ꢀ ꢁꢂꢃ ꢃ ꢏ ꢅ ꢅ ꢆꢇ ꢄ ꢈ ꢉꢀ ꢊ ꢁꢍ ꢈ ꢌꢋ ꢐ ꢍ ꢍꢑ ꢍ ꢎꢀ ꢁꢎ ꢀ
ꢄ ꢒ ꢓ ꢔꢕꢖ ꢗ ꢑꢍ ꢋꢌ ꢐꢎꢗ ꢖꢀꢍ ꢋꢂ ꢈ ꢉꢀ ꢊ ꢘ ꢔꢁꢉ ꢙ ꢚ ꢂꢍ ꢁ ꢁꢖꢛ ꢜꢖ ꢐ ꢉꢙ ꢐ
SGLS295A − FEBRUARY 2005 − REVISED APRIL 2008
D
D
Qualified for Automotive Applications
TPS771xx
DGK Package
(TOP VIEW)
Open Drain Power-On Reset With 220-ms
Delay (TPS771xx)
D
Open Drain Power-Good (PG) Status
Output (TPS772xx)
FB/SENSE
RESET
EN
OUT
OUT
IN
1
2
3
4
8
7
6
5
D
150-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.7-V, 2.8-V, 3.3-V,
5.0-V Fixed Output and Adjustable Versions
GND
IN
D
TPS772xx
DGK Package
(TOP VIEW)
D
Dropout Voltage Typically 115 mV
at 150 mA (TPS77133, TPS77233)
D
D
D
Ultralow 92-µA Quiescent Current (Typ)
8-Pin MSOP (DGK) Package
FB/SENSE
PG
1
2
3
4
8
7
6
5
OUT
OUT
IN
Low Noise (55 µV
) Without External
rms
EN
Filter (Bypass) Capacitor (TPS77118,
TPS77218)
GND
IN
D
2% Tolerance Over Specified Conditions
for Fixed-Output Versions
TPS77x33
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
D
Fast Transient Response
D
Thermal Shutdown Protection
300
250
200
150
100
50
description
I
O
= 150 mA
The TPS771xx and TPS772xx are low-dropout
regulators with integrated power-on reset and
power good (PG) function respectively. These
devices are capable of supplying 150 mA of output
current with a dropout of 115 mV (TPS77133,
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
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
I
O
= 10 mA
I
O
= 0 A
0
−50
−40
0
40
80
120
160
T
J
− Junction Temperature − °C
µV ) without using any added filter capacitors.
rms
TPS771xx and TPS772xx are designed to have
fast transient response for larger load current
changes.
The TPS771xx or TPS772xx is offered in 1.5 V,1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5 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 TPS771xx and TPS772xx families are available in 8-pin MSOP (DGK)
packages.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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