SLUS719H
MARCH 2007 – May 2019
TPS40192
,
TPS40193
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Application Diagram
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
Dissipation Ratings
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Voltage Reference
7.3.2
Oscillator
7.3.3
UVLO
7.3.4
Enable Functionality
7.3.5
Start-Up Sequence and Timing
7.3.6
Selecting the Short Circuit Current
7.3.7
5-V Regulator
7.3.8
Prebias Start-Up
7.3.9
Drivers
7.3.10
Power Good
7.3.11
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Continuous Conduction Mode
7.4.2
Low-Quiescent Shutdown
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Selecting the Switching Frequency
8.2.2.2
Inductor Selection
8.2.2.3
Output Capacitor Selection (C8)
8.2.2.4
Peak Current Rating of the Inductor
8.2.2.5
Input Capacitor Selection (C7)
8.2.2.6
MOSFET Switch Selection (Q1, Q2)
8.2.2.7
Boot Strap Capacitor
8.2.2.8
Input Bypass Capacitor (C6)
8.2.2.9
BP5 Bypass Capacitor (C5)
8.2.2.10
Input Voltage Filter Resistor (R11)
8.2.2.11
Short Circuit Protection (R9)
8.2.2.12
Feedback Compensation (Modeling the Power Stage)
8.2.2.13
Feedback Divider (R7, R8)
8.2.2.14
Error Amplifier Compensation (R6, R10, C1, C2, C3)
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Related Devices
11.1.2
Device Nomenclature
11.2
Documentation Support
11.3
Related Links
11.4
Receiving Notification of Documentation Updates
11.5
Community Resources
11.6
Trademarks
11.7
Electrostatic Discharge Caution
11.8
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DRC|10
MPDS117L
Thermal pad, mechanical data (Package|Pins)
DRC|10
QFND013N
Orderable Information
slus719h_oa
slus719h_pm
10.2
Layout Examples
Figure 23.
TPS40192 and TPS40193 Devices Sample Layout - Component Placement and Top Side Copper
Figure 24.
TPS40192 and TPS40193 Devices Sample Layout - Bottom Side Copper (X-Ray view from Top)