TPS77401-EP
250-mA LDO VOLTAGE REGULATOR
WITH POWER-GOOD OUTPUT
www.ti.com
SLVS702–OCTOBER 2006
FEATURES
DGK PACKAGE
(TOP VIEW)
•
Controlled Baseline
– One Assembly
FB/SENSE
PG
8
7
6
5
OUT
OUT
IN
1
2
3
4
– One Test Site
– One Fabrication Site
EN
•
•
Extended Temperature Performance of –55°C
to 125°C
GND
IN
Enhanced Diminishing Manufacturing
Sources (DMS) Support
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
•
•
•
•
Enhanced Product-Change Notification
(1)
Qualification Pedigree
300
250
200
150
100
50
Open-Drain Power-Good (PG) Status Output
Available in 1.5-V, 1.8-V, 2.7-V, 2.8-V, 3.3-V,
5-V Fixed-Output and Adjustable Versions
I
O
= 250 mA
•
•
•
•
Dropout Voltage Typically 200 mV at 250 mA
Ultralow 92-µA Quiescent Current (Typ)
8-Pin MSOP (DGK) Package
Low Noise (55 µVrms) Without an External
Filter (Bypass) Capacitor
•
2% Tolerance Over Specified Conditions For
Fixed-Output Versions
I
O
= 10 mA
I
O
= 0 A
•
•
•
Fast Transient Response
0
Thermal Shutdown Protection
See the TPS779xx Family of Devices for
Active-High Enable
−50
−40
0
40
80
120
160
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
T − Junction Temperature − °C
J
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
DESCRIPTION
The TPS77401 is a low-dropout (LDO) regulator with power good (PG) function. This device is capable of
supplying 250 mA of output current with a dropout of 200 mV. Quiescent current is 92 µA at full load dropping
down to 1 µA when device is disabled. This device is optimized to be stable with a wide range of output
capacitors including low-ESR ceramic (10-µF) or low-capacitance (1 µF) tantalum capacitors. This device has
extremely low noise output performance (55 µVrms) without using any added filter capacitors. The TPS77401 is
designed to have fast transient response for larger load current changes.
The TPS77401 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 TPS77401 device is available in an 8-pin mini small-outline package (MSOP)
(DGK).
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.