TPS77401-EP Datasheet, PDF (1/23 Pages) Texas Instruments – 250-mA LDO VOLTAGE REGULATOR WITH POWER-GOOD OUTPUT

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FEATURES
• Controlled Baseline
– One Assembly
– One Test Site
– One Fabrication Site
• Extended Temperature Performance of –55°C
to 125°C
• Enhanced Diminishing Manufacturing
Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• 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
• Dropout Voltage Typically 200 mV at 250 mA
• Ultralow 92-µA Quiescent Current (Typ)
• 8-Pin MSOP (DGK) Package
• Low Noise (55 µV_rms) Without an External
Filter (Bypass) Capacitor
• 2% Tolerance Over Specified Conditions For
Fixed-Output Versions
• Fast Transient Response
• Thermal Shutdown Protection
• See the TPS779xx Family of Devices for
Active-High Enable
(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,
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.
TPS77401-EP
250-mA LDO VOLTAGE REGULATOR
WITH POWER-GOOD OUTPUT
SLVS702 – OCTOBER 2006
FB/SENSE
PG
EN
GND
DGK PACKAGE
(TOP VIEW)
1
8
2
7
3
6
4
5
OUT
OUT
IN
IN
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
300
250
I_O = 250 mA
200
150
100
I_O = 10 mA
50
I_O = 0 A
0
−50
−40
0
40
80
120
160
T_J − Junction Temperature − °C
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 µV_rms) 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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated