SNVS129G
May 2004 – June 2025
LM2675
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.4.1
Electrical Characteristics – 3.3 V
5.5
Electrical Characteristics – 5 V
5.6
Electrical Characteristics – 12 V
5.7
Electrical Characteristics – Adjustable
5.8
Electrical Characteristics – All Output Voltage Versions
5.9
Typical Characteristics
5.10
Typical Characteristics – Fixed Output Voltage Versions
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Adjustable Output Voltage
6.4
Device Functional Modes
6.4.1
Shutdown Mode
6.4.2
Active Mode
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Fixed Output Voltage Application
7.2.1.1
Design Requirements
7.2.1.2
Detailed Design Procedure
7.2.1.2.1
Custom Design with WEBENCH® Tools
7.2.1.2.2
Inductor Selection (L1)
7.2.1.2.3
Output Capacitor Selection (COUT)
7.2.1.2.4
Catch Diode Selection (D1)
7.2.1.2.5
Input Capacitor (CIN)
7.2.1.2.6
Boost Capacitor (CB)
7.2.1.3
Application Curves
7.2.2
Adjustable Output Voltage Application
7.2.2.1
Design Requirements
7.2.2.2
Detailed Design Procedure
7.2.2.2.1
Programming Output Voltage
7.2.2.2.2
Inductor Selection (L1)
7.2.2.2.3
Output Capacitor SeIection (COUT)
7.2.2.2.4
Catch Diode Selection (D1)
7.2.2.2.5
Input Capacitor (CIN)
7.2.2.2.6
Boost Capacitor (CB)
7.2.2.3
Application Curve
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
WSON Package Devices
7.4.2
Layout Examples
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.1.1
Custom Design with WEBENCH® Tools
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
D|8
MSOI002K
NHN|16
MPDS423
P|8
MPDI001B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs129g_oa
snvs129g_pm
Data Sheet
LM2675 SIMPLE SWITCHER
®
Power Converter, High-Efficiency,
1A, Step-Down Voltage Regulator