SLVS751E
November 2007 – January 2024
TPS5430-Q1
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 (DDA Package)
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
Oscillator Frequency
6.3.2
Voltage Reference
6.3.3
Enable (ENA) and Internal Slow Start
6.3.4
Undervoltage Lockout (UVLO)
6.3.5
Boost Capacitor (BOOT)
6.3.6
Output Feedback (VSENSE) and Internal Compensation
6.3.7
Voltage Feed Forward
6.3.8
Pulse-Width Modulation (PWM) Control
6.3.9
Overcurrent Limiting
6.3.10
Overvoltage Protection (OVP)
6.3.11
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
Operation near Minimum Input Voltage
6.4.2
Operation with ENA control
7
Application and Implementation
7.1
Application Information
7.2
Typical Applications
7.2.1
Application Circuit, 12 V to 5 V
7.2.1.1
Design Requirements
7.2.1.2
Detailed Design Procedure
7.2.1.2.1
Custom Design With WEBENCH® Tools
7.2.1.2.2
Switching Frequency
7.2.1.2.3
Input Capacitors
7.2.1.2.4
Output Filter Components
7.2.1.2.4.1
Inductor Selection
7.2.1.2.4.2
Capacitor Selection
7.2.1.2.5
Output Voltage Setpoint
7.2.1.2.6
Boot Capacitor
7.2.1.2.7
Catch Diode
7.2.1.2.8
Advanced Information
7.2.1.2.8.1
Output Voltage Limitations
7.2.1.2.8.2
Internal Compensation Network
7.2.1.2.8.3
Thermal Calculations
7.2.1.3
Application Curves
7.2.2
9-V to 21-V Input to 5-V Output Application Circuit
7.2.3
Circuit Using Ceramic Output Filter Capacitors
7.2.3.1
Output Filter Component Selection
7.2.3.2
External Compensation Network
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.1.1
Custom Design With WEBENCH® Tools
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)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
DDA|8
PPTD043J
Orderable Information
slvs751e_oa
slvs751e_pm
6.2
Functional Block Diagram