JAJSSB2
September 2024
TPS548B23
ADVANCE INFORMATION
1
1
特長
2
アプリケーション
3
概要
4
Device Comparison Table
5
Pin Configuration 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
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
D-CAP4 Control
7.3.2
Internal VCC LDO and Using External Bias On the VCC Pin
7.3.2.1
Powering the Device From a Single Bus
7.3.2.2
Powering the Device From a Split-Rail Configuration
7.3.3
Multifunction Configuration (CFG1-5) Pins
7.3.3.1
Multifunction Configuration (CFG1-2) Pins (Internal Feedback)
7.3.3.2
Multifunction Configuration (CFG1-2) Pins (External Feedback)
7.3.3.3
Multifunction Configuration (CFG3-5) Pins
7.3.4
Enable
7.3.5
Soft Start
7.3.6
Power Good
7.3.7
Overvoltage and Undervoltage Protection
7.3.8
Remote Sense
7.3.9
Low-side MOSFET Zero-Crossing
7.3.10
Current Sense and Positive Overcurrent Protection
7.3.11
Low-side MOSFET Negative Current Limit
7.3.12
Output Voltage Discharge
7.3.13
UVLO Protection
7.3.14
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Auto-Skip (PFM) Eco-mode Light Load Operation
7.4.2
Forced Continuous-Conduction 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
Output Voltage Setting Point
8.2.2.2
Choose the Switching Frequency
8.2.2.3
Choose the Inductor
8.2.2.4
Choose the Output Capacitor
8.2.2.5
Choose the Input Capacitors (CIN)
8.2.2.6
VCC Bypass Capacitor
8.2.2.7
BOOT Capacitor
8.2.2.8
PG Pullup Resistor
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
ドキュメントの更新通知を受け取る方法
9.3
サポート・リソース
9.4
Trademarks
9.5
静電気放電に関する注意事項
9.6
用語集
10
Revision History
11
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)
VAN|19
サーマルパッド・メカニカル・データ
発注情報
jajssb2_oa
8.4
Layout