SNVSBB3
October 2019
LM5163
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application
Typical Application Efficiency, VOUT = 12 V
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
Control Architecture
7.3.2
Internal VCC Regulator and Bootstrap Capacitor
7.3.3
Regulation Comparator
7.3.4
Internal Soft Start
7.3.5
On-Time Generator
7.3.6
Current Limit
7.3.7
N-Channel Buck Switch and Driver
7.3.8
Synchronous Rectifier
7.3.9
Enable/Undervoltage Lockout (EN/UVLO)
7.3.10
Power Good (PGOOD)
7.3.11
Thermal Protection
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Active Mode
7.4.3
Sleep Mode
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
Custom Design With WEBENCH® Tools
8.2.2.2
Switching Frequency (RRON)
8.2.2.3
Buck Inductor (LO)
8.2.2.4
Output Capacitor (COUT)
8.2.2.5
Input Capacitor (CIN)
8.2.2.6
Type 3 Ripple Network
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Compact PCB Layout for EMI Reduction
10.1.2
Feedback Resistors
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Development Support
11.1.2.1
Custom Design With WEBENCH® Tools
11.2
Related Documentation
11.3
Receiving Notification of Documentation Updates
11.4
Support Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
DDA|8
PPTD058I
Orderable Information
snvsbb3_oa
11.2
Related Documentation
For related documentation see the following:
Texas Instruments,
LM5164-Q1EVM-041 EVM User's Guide
Texas Instruments,
Selecting an Ideal Ripple Generation Network for Your COT Buck Converter Application Report
Texas Instruments,
Valuing Wide V
IN
, Low-EMI Synchronous Buck Circuits for Cost-Effective, Demanding Applications White Paper
Texas Instruments,
An Overview of Conducted EMI Specifications for Power Supplies White Paper
Texas Instruments,
An Overview of Radiated EMI Specifications for Power Supplies White Paper
Texas Instruments,
24-V AC Power Stage with Wide V
IN
Converter and Battery Gauge for Smart Thermostat Design Guide
Texas Instruments,
Accurate Gauging and 50-μA Standby Current, 13S, 48-V Li-ion Battery Pack Reference Design Guide
Texas Instruments,
AN-2162: Simple Success with Conducted EMI from DC/DC Converters Application Report
Texas Instruments,
Powering Drones with a Wide V
IN
DC/DC Converter Application Report
Texas Instruments,
Using New Thermal Metrics Application Report
Texas Instruments,
Semiconductor and IC Package Thermal Metrics Application Report