Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
Menu
Product
Email
PDF
Order now
LM43603 3.5-V to 36-V, 3A Synchronous Step-Down Voltage Converter
SNVSA09D
April 2014 – August 2017
LM43603
PRODUCTION DATA.
CONTENTS
SEARCH
LM43603 3.5-V to 36-V, 3A Synchronous Step-Down Voltage Converter
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and 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
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Fixed Frequency Peak Current Mode Controlled Step-Down Regulator
7.3.2
Light Load Operation
7.3.3
Adjustable Output Voltage
7.3.4
Enable (EN)
7.3.5
VCC, UVLO and BIAS
7.3.6
Soft-Start and Voltage Tracking (SS/TRK)
7.3.7
Switching Frequency (RT) and Synchronization (SYNC)
7.3.8
Minimum ON-time, Minimum OFF-time and Frequency Foldback at Drop-Out Conditions
7.3.9
Internal Compensation and CFF
7.3.10
Bootstrap Voltage (BOOT)
7.3.11
Power Good (PGOOD)
7.3.12
Over Current and Short Circuit Protection
7.3.13
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Stand-by Mode
7.4.3
Active Mode
7.4.4
CCM Mode
7.4.5
Light Load Operation
7.4.6
Self-Bias Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Output Voltage Set-Point
8.2.2.3
Switching Frequency
8.2.2.4
Input Capacitors
8.2.2.5
Inductor Selection
8.2.2.6
Output Capacitor Selection
8.2.2.7
Feed-Forward Capacitor
8.2.2.8
Bootstrap Capacitors
8.2.2.9
VCC Capacitor
8.2.2.10
BIAS Capacitors
8.2.2.11
Soft-Start Capacitors
8.2.2.12
Under Voltage Lockout Set-Point
8.2.2.13
PGOOD
8.2.3
Application Performance Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Compact Layout for EMI Reduction
10.1.2
Ground Plane and Thermal Considerations
10.1.3
Feedback Resistors
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Custom Design With WEBENCH® Tools
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Related Links
11.4
Receiving Notification of Documentation Updates
11.5
Community Resources
11.6
Trademarks
11.7
Electrostatic Discharge Caution
11.8
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DSU|16
MPDS337A
PWP|16
MPDS371A
Thermal pad, mechanical data (Package|Pins)
PWP|16
PPTD297B
Orderable Information
snvsa09d_oa
snvsa09d_pm
search
No matches found.
Full reading width
Full reading width
Comfortable reading width
Expanded reading width
Card for each section
Card with all content