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LM22676/-Q1 42 V, 3 A SIMPLE SWITCHER® Step-Down Voltage Regulator with Features
SNVS587L
September 2008 – November 2014
LM22676
,
LM22676-Q1
PRODUCTION DATA.
CONTENTS
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LM22676/-Q1 42 V, 3 A SIMPLE SWITCHER® Step-Down Voltage Regulator with Features
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings: LM22676
6.3
Handling Ratings: LM22676-Q1
6.4
Recommended Operating Conditions
6.5
Thermal Information
6.6
Electrical Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Precision Enable and UVLO
7.3.2
Soft-Start
7.3.3
Boot-Strap Supply
7.3.4
Internal Compensation
7.4
Device Functional Modes
7.4.1
Current Limit
7.4.2
Thermal Protection
7.4.3
Duty-Cycle Limits
8
Application and Implementation
8.1
Application Information
8.1.1
Output Voltage Divider Selection
8.1.2
Power Diode
8.2
Typical Application
8.2.1
Typical Buck Regulator Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
External Components
8.2.1.2.2
Inductor
8.2.1.2.3
Input Capacitor
8.2.1.2.4
Output Capacitor
8.2.1.2.5
Boot-Strap Capacitor
8.2.1.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Thermal Considerations
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Related Links
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
NDR|7
MMSF023A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs587l_oa
snvs587l_pm
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