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TPS74801TDRCRQ1 Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS74801TDRCRQ1
Descripción Electrónicos  1.5A Low-Dropout Linear Regulator with Programmable Soft-Start
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS74801TDRCRQ1 Datasheet(HTML) 1 Page - Texas Instruments

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background image
0.5V/div
V
OUT
V
EN
1V/div
Time(1ms/div)
C
SS =2.2nF
C
SS =1nF
C
SS =0nF
1.2V
0V
TPS74801
GND
EN
FB
IN
PG
BIAS
SS
OUT
V
IN
R
1
R
2
R
3
C
OUT
C
IN
C
SS
V
BIAS
C
BIAS
V
OUT
TPS74801
www.ti.com
SBVS074J
– JANUARY 2007 – REVISED JANUARY 2012
1.5A Low-Dropout Linear Regulator with Programmable Soft-Start
Check for Samples: TPS74801
1
FEATURES
2
VOUT Range: 0.8V to 3.6V
DESCRIPTION
Ultralow VIN Range: 0.8V to 5.5V
The TPS74801 low-dropout (LDO) linear regulator
VBIAS Range 2.7V to 5.5V
provides an easy-to-use robust power management
solution
for
a
wide
variety
of
applications.
Low Dropout: 60mV typ at 1.5A, VBIAS = 5V
User-programmable soft-start minimizes stress on the
Power Good (PG) Output Allows Supply
input power source by reducing capacitive inrush
Monitoring or Provides a Sequencing Signal
current on start-up. The soft-start is monotonic and
for Other Supplies
well-suited for powering many different types of
processors and ASICs. The enable input and power
2% Accuracy Over Line/Load/Temperature
good output allow easy sequencing with external
Programmable Soft-Start Provides Linear
regulators. This complete flexibility permits the user to
Voltage Startup
configure a solution that meets the sequencing
VBIAS Permits Low VIN Operation with Good
requirements
of
FPGAs,
DSPs,
and
other
Transient Response
applications with special start-up requirements.
Stable with Any Output Capacitor
≥ 2.2μF
A precision reference and error amplifier deliver 2%
Available in a Small 3mm x 3mm x 1mm
accuracy over load, line, temperature, and process.
The device is stable with any type of capacitor
SON-10 and 5 x 5 QFN-20 Packages
greater than or equal to 2.2
μF, and is fully specified
from
–40°C to +125°C. The TPS74801 is offered in a
APPLICATIONS
small 3mm
× 3mm SON-10 package, yielding a highly
FPGA Applications
compact, total solution size. It is also available in a 5
DSP Core and I/O Voltages
x 5 QFN-20 for compatibility with the TPS74401.
Post-Regulation Applications
Applications with Special Start-Up Time or
Sequencing Requirements
Hot-Swap and Inrush Controls
Figure 2. Turn-On Response
Figure 1. Typical Application Circuit (Adjustable)
1
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
© 2007–2012, 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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