Manufacturer Part Number
TPS54340BQDDAQ1
Manufacturer
Texas Instruments
Introduction
Automotive step-down (buck) DC/DC regulator
Product Features and Performance
Adjustable output voltage
Output range from 0.8V to 41.1V
Supports input voltage from 4.5V to 42V
5A output current capability
100kHz to 2.5MHz adjustable switching frequency
Eco-Mode™ for high efficiency at light loads
Thermal shutdown protection
Cycle-by-cycle current limit
Integrated high-side MOSFET
Frequency spread spectrum for reduced EMI
Product Advantages
High-efficiency power conversion
Wide input voltage range suitable for various applications
Adjustable switching frequency allows optimization between efficiency and component size
Robust thermal management with shutdown feature
Qualification to AEC-Q100 standards for automotive reliability
Key Technical Parameters
Min Input Voltage: 4.5V
Max Input Voltage: 42V
Min/Adjustable Output Voltage: 0.8V
Max Output Voltage: 41.1V
Current - Output: 3.5A
Switching Frequency Range: 100kHz ~ 2.5MHz
Operating Temperature Range: -40°C ~ 150°C
Non-synchronous rectification
Quality and Safety Features
Over-temperature protection
AEC-Q100 qualified for automotive applications
Current limit protection
Cycle-by-cycle overcurrent protection
Under-voltage lockout (UVLO)
Compatibility
Surface Mount type
PowerSOIC 8 package compatible with established mounting procedures
Application Areas
Automotive electronics
Industrial power supplies
Aftermarket car accessories
Portable devices with high voltage inputs
Product Lifecycle
Active status
Not nearing discontinuation
Replacement and upgrade options available
Several Key Reasons to Choose This Product
AEC-Q100 qualification ensuring reliability for automotive applications
Flexible and efficient power management suitable for a broad range of input voltages
Customizable switching frequency for design optimization
Wide operating temperature range for harsh environments
Eco-Mode™ feature for improved efficiency at light loads
Built-in protections enhance safety and longevity of product use