SLVSFN6
December 2020
TPS54622-EP
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configurations and 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
Fixed-Frequency PWM Control
7.3.2
Continuous Current Mode Operation (CCM)
7.3.3
VIN and Power VIN Pins (VIN and PVIN)
7.3.4
Voltage Reference
7.3.5
Adjusting the Output Voltage
7.3.6
Safe Start-Up Into Prebiased Outputs
7.3.7
Error Amplifier
7.3.8
Slope Compensation
7.3.9
Enable and Adjusting Undervoltage Lockout
7.3.10
Adjustable Switching Frequency and Synchronization (RT/CLK)
7.3.11
Slow Start (SS/TR)
7.3.12
Power Good (PWRGD)
7.3.13
Output Overvoltage Protection (OVP)
7.3.14
Overcurrent Protection
7.3.14.1
High-Side MOSFET Overcurrent Protection
7.3.14.2
Low-Side MOSFET Overcurrent Protection
7.3.15
Thermal Shutdown
7.3.16
Small Signal Model for Loop Response
7.3.17
Simple Small Signal Model for Peak Current Mode Control
7.3.18
Small Signal Model for Frequency Compensation
7.4
Device Functional Modes
7.4.1
Adjustable Switching Frequency (RT Mode)
7.4.2
Synchronization (CLK Mode)
7.4.3
Bootstrap Voltage (BOOT) and Low Dropout Operation
7.4.4
Sequencing (SS/TR)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedures
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Operating Frequency
8.2.2.3
Output Inductor Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.2.6
Slow-Start Capacitor Selection
8.2.2.7
Bootstrap Capacitor Selection
8.2.2.8
Undervoltage Lockout Setpoint
8.2.2.9
Output Voltage Feedback Resistor Selection
8.2.2.9.1
Minimum Output Voltage
8.2.2.10
Compensation Component Selection
8.2.2.11
Fast Transient Considerations
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Estimated Circuit Area
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.2
Custom Design With WEBENCH® Tools
11.2
Documentation Support
11.2.1
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
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RHL|14
MPQF252H
サーマルパッド・メカニカル・データ
発注情報
slvsfn6_oa
slvsfn6_pm
10
Layout