TPS77101, TPS77118, TPS77127, TPS77128, TPS77133 WITH RESET OUTPUT
TPS77201, TPS77218, TPS77227, TPS77228, TPS77233 WITH POWER GOOD OUTPUT
150-mA LDO REGULATORS WITH INTEGRATED RESET OR PG
SLVS225A – FEBRUARY 2000 – REVISED MARCH 2000
TPS771xx
Open Drain Power-On Reset With 220-ms
Delay (TPS771xx)
DGK PACKAGE
(TOP VIEW)
Open Drain Power-Good (PG) Status
Output (TPS772xx)
FB/SENSE
RESET
EN
OUT
OUT
IN
1
2
3
4
8
7
6
5
150-mA Low-Dropout Voltage Regulator
Available in 1.8-V, 2.7-V, 2.8-V, 3.3-V, Fixed
Output and Adjustable Versions
GND
IN
TPS772xx
DGK PACKAGE
(TOP VIEW)
Dropout Voltage Typically 115 mV
at 150 mA (TPS77133, TPS77233)
Ultra Low 92-µA Quiescent Current (Typ)
FB/SENSE
PG
1
2
3
4
8
7
6
5
OUT
OUT
IN
8-Pin MSOP (DGK) Package
Low Noise (55 µV
) Without External
rms
EN
Filter (Bypass) Capacitor (TPS77118,
TPS77218)
GND
IN
2% Tolerance Over Specified Conditions
for Fixed-Output Versions
TPS77x33
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
Fast Transient Response
Thermal Shutdown Protection
300
250
200
150
description
The TPS771xx and TPS772xx are low dropout
regulators with integrated power-on reset and
power good (PG) function respectively. These
devicesarecapableofsupplying150mAofoutput
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 lowESR
ceramic (10 µF) or low capacitance (1 µF)
tantalum capacitors. These devices have ex-
I
= 150 mA
O
100
50
I
= 10 mA
O
I
O
= 0 A
tremely low noise output performance (55 µV
)
rms
without using any added filter capacitors.
TPS771xx and TPS772xx are designed to have
fast transient response for larger load current
changes.
0
–40
0
40
80
120
140
T
J
– Junction Temperature – °C
The TPS771xx or TPS772xx is offered in 1.8-V, 2.7-V, 2.8-V and 3.3-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.
Copyright 2000, Texas Instruments Incorporated
This document contains information on products in more than one phase
of development. The status of each device is indicated on the page(s)
specifying its electrical characteristics.
1
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