SNVSBF0C
September 2019 – November 2025
LMR36520
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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
System Characteristics
6.9
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power-Good Flag Output
7.3.2
Enable and Start-Up
7.3.3
Current Limit and Short Circuit
7.3.4
Undervoltage Lockout and Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Auto Mode
7.4.2
Forced PWM Operation
7.4.3
Dropout
7.4.4
Minimum Switch On-Time
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design 1: Low Power 24-V, 2-A Buck Converter
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Choosing the Switching Frequency
8.2.1.2.2
Setting the Output Voltage
8.2.1.2.3
Inductor Selection
8.2.1.2.4
Output Capacitor Selection
8.2.1.2.5
Input Capacitor Selection
8.2.1.2.6
CBOOT
8.2.1.2.7
VCC
8.2.1.2.8
CFF Selection
8.2.1.2.9
External UVLO
8.2.1.2.10
Maximum Ambient Temperature
8.2.1.3
Application Curves
8.3
Best Design Practices
8.4
Power Supply Recommendations
8.5
Layout
8.5.1
Layout Guidelines
8.5.1.1
Ground and Thermal Considerations
8.5.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Electrostatic Discharge Caution
9.7
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
11.1
Tape and Reel Information
Package Options
Mechanical Data (Package|Pins)
DDA|8
MPDS092F
Thermal pad, mechanical data (Package|Pins)
DDA|8
PPTD058J
Orderable Information
snvsbf0c_oa
Data Sheet
LMR36520
SIMPLE SWITCHER
4.2V to 65V,
2A
Synchronous Step-Down Converter