SNVS710I
March 2011 – December 2015
LMZ13608
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Application Schematic
Efficiency 3.3-V Output at 25°C
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Output Overvoltage Protection
7.3.2
Current Limit
7.3.3
Thermal Protection
7.3.4
Prebiased Start-Up
7.4
Device Functional Modes
7.4.1
Discontinuous Conduction and Continuous Conduction Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Design Steps
8.2.2.2
Enable Divider, RENT, RENB and RENH Selection
8.2.2.3
Output Voltage Selection
8.2.2.4
Soft-Start Capacitor Selection
8.2.2.5
Tracking Supply Divider Option
8.2.2.6
COUT Selection
8.2.2.7
CIN Selection
8.2.2.8
Discontinuous Conduction and Continuous Conduction Modes Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Power Dissipation and Thermal Considerations
10.4
Power Module SMT Guidelines
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.1.2
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
12.1
Tape and Reel Information
Package Options
Mechanical Data (Package|Pins)
NDY|11
MMSF025
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs710i_oa
snvs710i_pm
1
Features
Integrated Shielded Inductor
Simple PCB Layout
Fixed Switching Frequency (350 kHz)
Flexible Start-up Sequencing Using External Soft-Start, Tracking and Precision Enable
Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit
Junction Temperature Range –40°C to 125°C
Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
Fully Enabled for WEBENCH® Power Designer
Pin Compatible With LMZ22010/08, LMZ12010/08, LMZ23610/08/06H, and LMZ13610/06H
Performance Benefits
High Efficiency Reduces System Heat Generation
Low Radiated Emissions (EMI) Tested to EN55022 Class B Standard
Only 7 External Components
Low Output Voltage Ripple
No External Heat Sink Required
Electrical Specifications
40-W Maximum Total Output Power
Up to 8-A Output Current
Input Voltage Range 6 V to 36 V
Output Voltage Range 0.8 V to 6 V
Efficiency up to 92%
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, Tested on Evaluation Board with EMI Configuration