SBVS066S
December 2005 – November 2024
TPS74401
PRODUCTION DATA
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
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Enable, Shutdown
6.3.2
Power-Good (VQFN Package Only)
6.3.3
Internal Current Limit
6.3.4
Thermal Protection
6.4
Device Functional Modes
6.4.1
Normal Operation
6.4.2
Dropout Operation
6.4.3
Disabled
6.5
Programming
6.5.1
Programmable Soft-Start
6.5.2
Sequencing Requirements
7
Application and Implementation
7.1
Application Information
7.1.1
Input, Output, and Bias Capacitor Requirements
7.1.2
Transient Response
7.1.3
Dropout Voltage
7.1.4
Output Noise
7.2
Typical Applications
7.2.1
Setting the TPS74401
7.2.1.1
Design Requirements
7.2.1.2
Detailed Design Procedure
7.2.1.3
Application Curves
7.2.2
Using an Auxiliary Bias Rail
7.2.3
Without an Auxiliary Bias
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Power Dissipation
7.4.1.2
Thermal Considerations
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Documentation Support
8.1.1
Related Documentation
8.1.2
Device Nomenclature
8.2
Device Support
8.2.1
Development Support
8.2.1.1
Evaluation Modules
8.2.1.2
Spice Models
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
7.2
Typical Applications