Linear Regulator. TPS7A8050 Datasheet

TPS7A8050 Regulator. Datasheet pdf. Equivalent

Part TPS7A8050
Description Low-Dropout 1-A Linear Regulator
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Total Page 30 Pages
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TPS7A8050
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TPS7A80
SBVS135J – JUNE 2010 – REVISED JANUARY 2018
TPS7A80 Low-Noise, Wide-Bandwidth, High PSRR,
Low-Dropout 1-A Linear Regulator
1 Features
1 Low-Dropout 1-A Regulator With Enable
• Adjustable Output Voltages: 0.8 V to 6 V
• Fixed Output Voltages: 0.8 V to 6 V
• Wide-Bandwidth High PSRR:
– 63 dB at 1 kHz
– 57 dB at 100 kHz
– 38 dB at 1 MHz
• Low Noise: (14 × VOUT ) μVRMS Typical (100 Hz to
100 kHz)
• Stable with a 4.7-μF Ceramic Capacitor
• Excellent Load/Line Transient Response
• 3% Overall Accuracy (Over Load/Line/Temp)
• Overcurrent and Overtemperature Protection
• Very Low Dropout: 170 mV Typical at 1 A
• 3-mm × 3-mm VSON-8 DRB Package
2 Applications
• Telecom Infrastructure
• Audio
• High-Speed I/F (PLL/VCO)
3 Description
The TPS7A80 family of low-dropout linear regulators
(LDOs) offer very high power-supply ripple rejection
(PSRR) at the output. This LDO family uses an
advanced BiCMOS process and a PMOSFET pass
device to achieve very low noise, excellent transient
response, and excellent PSRR performance.
The TPS7A80 family is stable with a 4.7-μF ceramic
output capacitor, and uses a precision voltage
reference and feedback loop to achieve a worst-case
accuracy of 3% over all load, line, process, and
temperature variations.
This family is fully specified over the temperature
range of TJ = –40°C to +125°C, and is offered in a 3-
mm × 3-mm, VSON-8 package with a thermal pad.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A80
VSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Typical Application Diagram
Optional 1.0mF input capacitor.
May improve source impedance,
noise, or PSRR.
VIN IN OUT
TPS7A8001
R1
EN FB
GND NR
R2
VOUT
4.7mF
Ceramic
VEN To avoid inrush current,
it is recommended to
always connect a
1nF to 10nF capacitor
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



TPS7A8050
TPS7A80
SBVS135J – JUNE 2010 – REVISED JANUARY 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 14
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Application .................................................. 15
9 Power Supply Recommendations...................... 18
10 Layout................................................................... 18
10.1 Layout Guidelines ................................................. 18
10.2 Layout Example .................................................... 21
11 Device and Documentation Support ................. 22
11.1 Documentation Support ........................................ 22
11.2 Receiving Notification of Documentation Updates 22
11.3 Community Resources.......................................... 22
11.4 Trademarks ........................................................... 22
11.5 Electrostatic Discharge Caution ............................ 22
11.6 Glossary ................................................................ 22
12 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (August 2015) to Revision J
Page
• Added new fixed voltage devices and associated content to data sheet .............................................................................. 1
• Changed device name to generic part number to show new fixed voltage device options ................................................... 1
• Added SNS pin and description to Pin Functions table ......................................................................................................... 4
• Changed TA to TJ in Recommended Operating Conditions table .......................................................................................... 5
• Added fixed-voltage-version values to Electrical Characteristics table ................................................................................. 6
• Added test conditions to VNR parameter in Electrical Characteristics table ........................................................................... 6
• Added new note (3) to output accuracy parameter in Electrical Characteristics table........................................................... 6
• Deleted typical value for ISHDN in Electrical Characteristics table .......................................................................................... 6
Changes from Revision H (January 2013) to Revision I
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Deleted "Fixed Output Voltages: 0.8 V to 5 V Using Innovating Facatory EEPROM Programming" bullet from Features ... 1
• Changed "12.6" to "14" in Low Noise bullet ........................................................................................................................... 1
• Deleted SNS row from Pin Functions table ........................................................................................................................... 4
• Deleted fixed version from VOUT row in Electrical Characteristics ......................................................................................... 6
• Deleted ISNS row from Electrical Characteristics ................................................................................................................. 6
Changes from Revision G (April 2012) to Revision H
Page
• Updated Figure 8.................................................................................................................................................................... 7
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