SLVSKC2
October 2025
TPS7E81
ADVANCE INFORMATION
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagrams
6.3
Feature Description
6.3.1
Enable (EN)
6.3.2
Dropout Voltage
6.3.3
Undervoltage Lockout
6.3.4
Thermal Shutdown
6.3.5
Foldback Current Limit
6.3.6
Power Limit
6.3.7
Output Pulldown
6.4
Device Functional Modes
6.4.1
Device Functional Mode Comparison
6.4.2
Normal Operation
6.4.3
Dropout Operation
6.4.4
Disabled
7
Application and Implementation
7.1
Application Information
7.1.1
Adjustable Device Feedback Resistor Selection
7.1.2
Recommended Capacitor Types
7.1.3
Input and Output Capacitor Selection
7.1.4
Reverse Current
7.1.5
Feed-Forward Capacitor
7.1.6
Dropout Voltage
7.1.7
Estimating Junction Temperature
7.1.8
Power Dissipation (PD)
7.1.9
Power Dissipation Versus Ambient Temperature
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Choose Feedback Resistors
7.2.3
Power Supply Recommendations
7.2.4
Layout
7.2.4.1
Layout Guidelines
7.2.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.2
Device Nomenclature
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DBV|5
MPDS018T
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvskc2_oa
Data Sheet
TPS7E81 150mA, 40V, 2.8μA Low I
Q
Low-Dropout Regulator