JAJSJ29E
May 2020 – October 2024
TPS61378-Q1
PRODUCTION DATA
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
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VCC Power Supply
7.3.2
Input Undervoltage Lockout (UVLO)
7.3.3
Enable and Soft Start
7.3.4
Shut Down
7.3.5
Switching Frequency Setting
7.3.6
Spread Spectrum Frequency Modulation
7.3.7
Adjustable Peak Current Limit
7.3.8
Bootstrap
7.3.9
Load Disconnect
7.3.10
MODE/SYNC Configuration
7.3.11
Overvoltage Protection (OVP)
7.3.12
Output Short Protection/Hiccup
7.3.13
Power-Good Indicator
7.3.14
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Forced PWM Mode
7.4.2
Auto PFM Mode
7.4.3
External Clock Synchronization
7.4.4
Down 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
Programming the Output Voltage
8.2.2.2
Setting the Switching Frequency
8.2.2.3
Setting the Current Limit
8.2.2.4
Selecting the Inductor
8.2.2.5
Selecting the Output Capacitors
8.2.2.6
Selecting the Input Capacitors
8.2.2.7
Loop Stability and Compensation
8.2.2.7.1
Small Signal Model
8.2.2.7.2
Loop Compensation Design Steps
8.2.2.7.3
Selecting the Bootstrap Capacitor
8.2.2.7.4
VCC Capacitor
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
サード・パーティ製品に関する免責事項
11.2
ドキュメントの更新通知を受け取る方法
11.3
サポート・リソース
11.4
Trademarks
11.5
用語集
11.6
静電気放電に関する注意事項
12
Revision History
13
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)
RTE|16
MPQF149D
サーマルパッド・メカニカル・データ
RTE|16
QFND630A
発注情報
jajsj29e_oa
jajsj29e_pm
11
Device and Documentation Support