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TPS74401RGWRG4 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS74401RGWRG4
Description  3.0A Ultra-Low Dropout Linear Regulator
Download  22 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS74401RGWRG4 Fiches technique(HTML) 1 Page - Texas Instruments

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TPS74401
TPS74401
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
TPS74401
GND
EN
FB
IN
PG
SS
OUT
V
IN
V
OUT
V
PG
R
1
R
2
R
3
C
OUT
Optional
C
IN
1 F
m
C
SS
V
BIAS
C
BIAS
1 F
m
BIAS
1V/div
500mV/div
Time(1ms/div)
C
=0 F
SS
m
C
=0.001 F
SS
m
C
=0.0047 F
SS
m
V
OUT
V
EN
0V
1.1V
TPS74401
SBVS066D – DECEMBER 2005 – REVISED AUGUST 2006
3.0A Ultra-Low Dropout Linear Regulator
Soft-Start (SS) Pin Provides a Linear Startup
The TPS74401 low-dropout (LDO) linear regulator
with Ramp Time Set by External Capacitor
provides an easy-to-use robust power management
1% Accuracy Over Line, Load, and
solution
for
a
wide
variety
of
applications.
Temperature
User-programmable soft-start minimizes stress on
Supports Input Voltages as Low as 0.9V with
the input power source by reducing capacitive inrush
External Bias Supply
current on start-up. The soft-start is monotonic and
well-suited for powering many different types of
Adjustable Output (0.8V to 3.6V)
processors and ASICs. The enable input and
Ultra-Low Dropout: 115mV at 3.0A (typ)
power-good output allow easy sequencing with
Stable with Any or No Output Capacitor
external regulators. This complete flexibility permits
the user to configure a solution that will meet the
Excellent Transient Response
sequencing requirements of FPGAs, DSPs, and
Available in 5mm
× 5mm × 1mm QFN and
other applications with specific start-up requirements.
DDPAK-7 Packages
A precision reference and error amplifier deliver 1%
Open-Drain Power-Good (QFN only)
accuracy over load, line, temperature, and process.
Active High Enable
Each LDO is stable with low-cost ceramic output
capacitors and the device is fully specified from
–40
°C to +125°C. The TPS74401 is offered in a
FPGA Applications
small (5mm
× 5mm) QFN package, yielding a highly
compact total solution size. For applications that
DSP Core and I/O Voltages
require additional power dissipation, the DDPAK
Post-Regulation Applications
(KTW) package is also available.
Applications with Special Start-Up Time or
Sequencing Requirements
Hot-Swap and Inrush Controls
Figure 1. Typical Application Circuit
Figure 2. Turn-On Response
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.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005–2006, 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.


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