SNVS671F
February 2011 – May 2019
LM21212-1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Application Circuit
4
Revision History
5
Description
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Performance Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Frequency Synchronization
8.3.2
Precision Enable
8.3.3
UVLO
8.3.4
Current Limit
8.3.5
Short-Circuit Protection
8.3.6
Thermal Protection
8.3.7
Power-Good Flag
8.3.8
Light Load Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Detailed Design Procedure
9.2.1.1
Custom Design With WEBENCH® Tools
9.2.1.2
Output Voltage
9.2.1.3
Precision Enable
9.2.1.4
Soft Start
9.2.1.5
Inductor Selection
9.2.1.6
Output Capacitor Selection
9.2.1.7
Input Capacitor Selection
9.2.1.8
Control Loop Compensation
9.2.2
Application Curves
10
Layout
10.1
Pcb Layout Considerations
10.2
Thermal Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Development Support
11.1.2.1
Custom Design With Webench® Tools
11.2
Receiving Notification Of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
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)
PWP|20
MHTS001G
サーマルパッド・メカニカル・データ
PWP|20
PPTD299
9.2
Typical Application
Figure 26.
LM21212-1 Typical Application