JAJSQ82B
November 2023 – July 2024
TPS548D26
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
Internal VCC LDO and Using an External Bias on the VCC and VDRV Pin
6.3.2
Input Undervoltage Lockout (UVLO)
6.3.2.1
Fixed VCC_OK UVLO
6.3.2.2
Fixed VDRV UVLO
6.3.2.3
Fixed PVIN UVLO
6.3.2.4
Enable
6.3.3
Set the Output Voltage
6.3.4
Differential Remote Sense and Feedback Divider
6.3.5
Start-Up and Shutdown
6.3.6
Loop Compensation
6.3.7
Set Switching Frequency and Operation Mode
6.3.8
Switching Node (SW)
6.3.9
Overcurrent Limit and Low-side Current Sense
6.3.10
Negative Overcurrent Limit
6.3.11
Zero-Crossing Detection
6.3.12
Input Overvoltage Protection
6.3.13
Output Undervoltage and Overvoltage Protection
6.3.14
Overtemperature Protection
6.3.15
Power Good
6.4
Device Functional Modes
6.4.1
Forced Continuous-Conduction Mode
6.4.2
Auto-Skip Eco-mode Light Load Operation
6.4.3
Powering the Device From a 12-V Bus
6.4.4
Powering the Device From a Split-Rail Configuration
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Application
7.2.2
Design Requirements
7.2.3
Detailed Design Procedure
7.2.3.1
Inductor Selection
7.2.3.2
Input Capacitor Selection
7.2.3.3
Output Capacitor Selection
7.2.3.4
VCC and VRDV Bypass Capacitor
7.2.3.5
BOOT Capacitor Selection
7.2.3.6
PG Pullup Resistor Selection
7.2.4
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
7.4.2.1
Thermal Performance on TPS548D26 Evaluation Board
8
Device and Documentation Support
8.1
ドキュメントの更新通知を受け取る方法
8.2
サポート・リソース
8.3
Trademarks
8.4
静電気放電に関する注意事項
8.5
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)
RXX|37
MPQF618C
サーマルパッド・メカニカル・データ
RXX|37
QFND715C
発注情報
jajsq82b_oa
jajsq82b_pm
8
Device and Documentation Support