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TPS7A80 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator
SBVS135J
June 2010 – January 2018
TPS7A80
PRODUCTION DATA.
CONTENTS
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TPS7A80 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator
1
Features
2
Applications
3
Description
Device Images
Typical Application Diagram
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Internal Current Limit
7.3.2
Shutdown
7.3.3
Start-Up
7.3.4
Undervoltage Lockout (UVLO)
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.1.1
Dropout Voltage
8.2.1.2
Minimum Load
8.2.1.3
Input and Output Capacitor Requirements
8.2.1.4
Transient Response
8.2.2
Detailed Design Procedure
8.2.2.1
Output Noise
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout Recommendations to Improve PSRR and Noise Performance
10.1.2
Thermal Considerations
10.1.3
Power Dissipation
10.1.4
Estimating Junction Temperature
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DRB|8
MPDS118K
Thermal pad, mechanical data (Package|Pins)
DRB|8
QFND058N
Orderable Information
sbvs135j_oa
sbvs135j_pm
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DATA SHEET
TPS7A80 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator
1
Features
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 × V
OUT
) μV
RMS
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