Manufacturer Part Number
LM5140QRWGTQ1
Manufacturer
Texas Instruments
Introduction
Automotive-Qualified Synchronous Buck Controller for High-Voltage Applications
Product Features and Performance
Dual-Channel with Independent Control
Wide Input Voltage Range: 3.8V to 65V
Supports Synchronous Rectification for High Efficiency
Selectable Switching Frequency: 440kHz or 2.2MHz
Thermal Shutdown
Current Limit Protection
Soft Start Capability
Frequency Synchronization Input
External Clock Synchronization
Product Advantages
High Efficiency for Reduced Power Loss
Wide Operating Voltage Suitable for Various Automotive Applications
High-Temperature Operation up to 150°C
Compliance with AEC-Q100 Automotive Standards
Key Technical Parameters
Output Type: Transistor Driver
Function: Step-Down
Output Configuration: Positive
Topology: Buck
Number of Outputs: 2
Output Phases: 1
Voltage Supply Range: 3.8V to 65V
Switching Frequency Options: 440kHz or 2.2MHz
Quality and Safety Features
Overtemperature Protection
Current Limiting Feature
Automotive Grade and AEC-Q100 Qualified
Compatibility
Compatible with a Wide Range of External MOSFETs
Supports Lead (Pb)-Free Reflow
Application Areas
Automotive Power Systems
Telematics and Infotainment Systems
Advanced Driver Assistance Systems (ADAS)
Powertrains
Electronic Control Units (ECUs)
Product Lifecycle
Active Status
Not Nearing Discontinuation
Availability of Replacements or Upgrades Possible
Several Key Reasons to Choose This Product
Robust for Automotive Applications with AEC-Q100 Qualification
Flexible Power Solution with Wide Input Voltage Range
High Reliability Over a Wide Temperature Range
Improved Power Efficiency with Synchronous Rectification
Design Versatility with Dual Outputs and Configurable Switching Frequency
Easy to Integrate with Surface Mount, Wettable Flank Package
Designed for High-Density Power Applications