JAJSCX4
February 2017
TPS54560B-Q1
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
4
改訂履歴
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
Timing Requirements
6.7
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
Slope Compensation Output Current
7.3.3
Pulse Skip Eco-mode
7.3.4
Low Dropout Operation and Bootstrap Voltage (BOOT)
7.3.5
Error Amplifier
7.3.6
Adjusting the Output Voltage
7.3.7
Enable and Adjusting Undervoltage Lockout
7.3.8
Internal Soft-Start
7.3.9
Constant Switching Frequency and Timing Resistor (RT/CLK) Terminal)
7.3.10
Accurate Current Limit Operation and Maximum Switching Frequency
7.3.11
Synchronization to RT/CLK Terminal
7.3.12
Overvoltage Protection
7.3.13
Thermal Shutdown
7.3.14
Small Signal Model for Loop Response
7.3.15
Simple Small Signal Model for Peak Current Mode Control
7.3.16
Small Signal Model for Frequency Compensation
7.4
Device Functional Modes
7.4.1
Operation with VIN < 4.5 V (Minimum VIN)
7.4.2
Operation with EN Control
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
Custom Design with WEBENCH® Tools
8.2.2.2
Selecting the Switching Frequency
8.2.2.3
Output Inductor Selection (LO)
8.2.2.4
Output Capacitor
8.2.2.5
Catch Diode
8.2.2.6
Input Capacitor
8.2.2.7
Bootstrap Capacitor Selection
8.2.2.8
Undervoltage Lockout Set Point
8.2.2.9
Output Voltage and Feedback Resistors Selection
8.2.2.10
Minimum Input Voltage, VIN
8.2.2.11
Compensation
8.2.2.12
Discontinuous Conduction Mode and Eco-mode Boundary
8.2.2.13
Power Dissipation Estimate
8.2.3
Application Curves
8.2.3.1
Safe Operating Area
8.3
Inverting Power
8.4
Split Rail Power Supply
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.2.1
Estimated Circuit Area
11
デバイスおよびドキュメントのサポート
11.1
デバイス・サポート
11.1.1
WEBENCH®ツールによるカスタム設計
11.2
ドキュメントの更新通知を受け取る方法
11.3
コミュニティ・リソース
11.4
商標
11.5
静電気放電に関する注意事項
11.6
Glossary
12
メカニカル、パッケージ、および注文情報
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)
DDA|8
MPDS092F
サーマルパッド・メカニカル・データ
DDA|8
PPTD178C
発注情報
jajscx4_oa
4
改訂履歴
日付
改訂内容
初版
2017年2月
*
初版