SNVS280I
April 2004 – October 2018
LM5008
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application Circuit and Block Diagram
4
Revision History
5
Pin Configuration and Functions
Pin 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
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Hysteretic Control Circuit Overview
7.3.2
High Voltage Start-Up Regulator
7.3.3
Regulation Comparator
7.3.4
Overvoltage Comparator
7.3.5
On-Time Generator and Shutdown
7.3.6
Current Limit
7.3.7
N-Channel Buck Switch and Driver
7.3.8
Thermal Protection
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Active Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Minimum Load Current
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Custom Design With WEBENCH® Tools
11.1.3
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
11.2.1.1
PCB Layout Resources
11.2.1.2
Thermal Design Resources
11.3
Receiving Notification of Documentation Updates
11.4
Community Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
NGU|8
MPDS407A
DGK|8
MPDS028E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs280i_oa
snvs280i_pm
1
Features
Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal V
CC
Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
On-Time Varies Inversely With Line Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit Protection
Thermal Shutdown
8-Pin VSSOP and WSON Packages
Create a Custom Design Using the LM5008 With the
WEBENCH® Power Designer