Manufacturer Part Number
LM5143QRHARQ1
Manufacturer
Texas Instruments
Introduction
High-performance step-down switching controller for power management
Product Features and Performance
Dual-channel operation
Integrated high-side and low-side MOSFET drivers
Wide input voltage range, suitable for automotive and industrial applications
Supports high-frequency operation increasing flexibility and reducing external component size
Adaptive dead-time control for improved efficiency
Programmable soft start and power good flag for sequencing and fault protection
Thermal shutdown for over-temperature protection
Current sense amplifier for accurate current limit control
Product Advantages
Robust design for harsh environments
Low standby quiescent current improving battery life in standby
Synchronous rectification for increased efficiency
High switching frequency for compact solutions
Key Technical Parameters
Input Voltage Range: 3.5V to 65V
Switching Frequency Range: 100kHz to 2.2MHz
Number of Outputs: 2
Output Phases: 2
Operating Temperature Range: -40°C to 150°C
Quality and Safety Features
Overcurrent and over-temperature protection
Automotive Grade qualification
High reliability and performance at elevated temperatures
Compatibility
Designed for use with a wide range of external MOSFETs
Application Areas
Automotive power supplies
Telecommunication infrastructure
Industrial control systems
Power conditioning for sensitive equipment
Product Lifecycle
Active product status, not reported as nearing discontinuation
Ongoing support from Texas Instruments with potential future upgrades
Several Key Reasons to Choose This Product
Extended temperature range, catering to automotive and industrial specifications
Design flexibility through a wide input voltage range and adjustable switching frequency
Protection features ensuring long-term reliability
Suitable for power-dense applications due to high-frequency operation
Ease of design and integration, owing to Texas Instruments’ comprehensive technical support and design tools