SNVS036L
April 2000 – June 2025
LM2670
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
5.5
Electrical Characteristics – 3.3 V
5.6
Electrical Characteristics – 5 V
5.7
Electrical Characteristics – 12 V
5.8
Electrical Characteristics – ADJ
5.9
Electrical Characteristics – All Output Voltage Versions
5.10
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Switch Output
6.3.2
Input
6.3.3
C Boost
6.3.4
Ground
6.3.5
SYNC
6.3.6
Feedback
6.3.7
ON/OFF
6.4
Device Functional Modes
6.4.1
Shutdown Mode
6.4.2
Active Mode
7
Application and Implementation
7.1
Application Information
7.1.1
Design Considerations
7.1.2
Inductor
7.1.3
Output Capacitor
7.1.4
Input Capacitor
7.1.5
Catch Diode
7.1.6
Boost Capacitor
7.1.7
Sync Components
7.1.8
Additional Application Information
7.2
Typical Applications
7.2.1
Typical Application for All Output Voltage Versions
7.2.1.1
Design Requirements
7.2.1.2
Detailed Design Procedure
7.2.1.2.1
Capacitor Selection Guides
7.2.1.2.2
Inductor Selection Guides
7.2.1.2.3
Custom Design with WEBENCH® Tools
7.2.1.3
Application Curves
7.2.2
Fixed Output Voltage Application
7.2.2.1
Design Requirements
7.2.2.2
Detailed Design Procedure
7.2.2.2.1
Capacitor Selection Guides
7.2.3
Adjustable Output Voltage Application
7.2.3.1
Design Requirements
7.2.3.2
Detailed Design Procedure
7.2.3.2.1
Capacitor Selection Guides
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Third-Party Products Disclaimer
8.1.2
Development Support
8.1.2.1
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
10.1
DAP (VSON Package)
Package Options
Mechanical Data (Package|Pins)
KTW|7
MPSF015
NDZ|7
MMSF005
NHM|14
MPDS422
Thermal pad, mechanical data (Package|Pins)
KTW|7
PPTD278
Orderable Information
snvs036l_oa
snvs036l_pm
Data Sheet
LM2670 SIMPLE SWITCHER
®
Power Converter, High-Efficiency, 3A, Step-Down Voltage Regulator With Sync