SLVSHR3
July 2024
TPS551892-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
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
VCC Power Supply
6.3.2
EXTVCC Power Supply
6.3.3
Input Undervoltage Lockout
6.3.4
Enable and Programmable UVLO
6.3.5
Soft Start
6.3.6
Shutdown
6.3.7
Switching Frequency
6.3.8
Switching Frequency Dithering
6.3.9
Inductor Current Limit
6.3.10
Internal Charge Path
6.3.11
Output Voltage Setting
6.3.12
Output Current Monitoring and Cable Voltage Droop Compensation
6.3.13
Output Current Limit
6.3.14
Overvoltage Protection
6.3.15
Output Short Circuit Protection
6.3.16
Power Good
6.3.17
Constant Current Output Indication
6.3.18
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
PWM Mode
6.4.2
Power Save Mode
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Switching Frequency
7.2.2.2
Output Voltage Setting
7.2.2.3
Inductor Selection
7.2.2.4
Input Capacitor
7.2.2.5
Output Capacitor
7.2.2.6
Output Current Limit
7.2.2.7
Loop Stability
7.2.3
Application Curves
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
Third-Party Products Disclaimer
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RYQ|21
MPQF641
Thermal pad, mechanical data (Package|Pins)
RYQ|21
QFND727
Orderable Information
slvshr3_oa
slvshr3_pm
7.4.2
Layout Example
Figure 7-13
Layout Example