JAJST77
July 2024
TPS551892-Q1
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
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
サード・パーティ製品に関する免責事項
8.2
ドキュメントの更新通知を受け取る方法
8.3
サポート・リソース
8.4
Trademarks
8.5
静電気放電に関する注意事項
8.6
用語集
9
Revision History
10
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)
RYQ|21
MPQF641
サーマルパッド・メカニカル・データ
RYQ|21
QFND727
発注情報
jajst77_oa
9
Revision History
DATE
REVISION
NOTES
July 2024
*
Initial release