SLUSAU4B
DECEMBER 2011 – February 2019
TPS53219A
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
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
Enable and Soft-Start
7.3.2
Adaptive ON-Time D-CAP Control and Frequency Selection
7.3.3
Small Signal Model
7.3.4
Ramp Signal
7.3.5
Adaptive Zero Crossing
7.3.6
Output Discharge Control
7.3.7
Low-Side Driver
7.3.8
High-Side Driver
7.3.9
Power Good
7.3.10
Current Sense and Overcurrent Protection
7.3.11
Overvoltage and Undervoltage Protection
7.3.12
UVLO Protection
7.3.13
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Light Load Condition in Auto-Skip Operation
7.4.2
Forced Continuous Conduction Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Typical Application With Power Block
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
External Components Selection
8.2.1.3
Application Curves
8.2.2
Typical Application With Ceramic Output Capacitors
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
External Parts Selection With All Ceramic Output Capacitors
8.2.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGT|16
MPQF119H
Thermal pad, mechanical data (Package|Pins)
RGT|16
QFND005T
Orderable Information
slusau4b_oa
slusau4b_pm
7.3
Feature Description