Manufacturer Part Number
TPS54428DDA
Manufacturer
Texas Instruments
Introduction
The TPS54428DDA is a high-efficiency, synchronous step-down converter from Texas Instruments, designed for power management in diverse applications.
Product Features and Performance
Efficient synchronous step-down (buck) converter
Supports Eco-Mode™ for improved light-load efficiency
Integrated D-CAP2™ control for fast transient response
Adjustable output voltage
Capable of delivering 4A continuous output current
650kHz switching frequency for optimal efficiency and component size
High-performance thermal shutdown feature
Product Advantages
High efficiency across a wide load range
Low dropout operation due to 100% duty cycle
High accuracy output voltage regulation
Compact package size suitable for space-constrained applications
Protection features include overcurrent, overvoltage, and thermal shutdown
Key Technical Parameters
Voltage - Input (Min): 4.5V
Voltage - Input (Max): 18V
Voltage - Output (Min/Fixed): 0.76V
Voltage - Output (Max): 7V
Current - Output: 4A
Frequency - Switching: 650kHz
Synchronous Rectifier: Yes
Operating Temperature: -40°C ~ 85°C (TA)
Quality and Safety Features
Thermal protection
Overcurrent protection
Under-voltage lockout (UVLO)
Synchronous rectification for reduced power dissipation
Compatibility
Compatible with a variety of capacitors and inductors due to adjustable switching frequency
Surface-mount technology for compatibility with modern PCB assembly processes
Application Areas
Computing systems
Networking equipment
FPGAs, ASICs, and DSP power supplies
Consumer electronics
Industrial and automation systems
Product Lifecycle
Status: Active
No indication of nearing discontinuation
Replacements or upgrades are available as newer generations of power regulators
Several Key Reasons to Choose This Product
Highly efficient power conversion, reducing energy loss
Wide input voltage range conducive for multiple applications
Flexible output voltage range to address a broad array of power needs
Texas Instruments' reliability and support
Simplifies power supply design with Texas Instruments' advanced packaging technology and built-in features
Suitable for high-density power applications due to its compact size and high switching frequency
The ability to maintain performance across a wide temperature range, ensuring reliability in varied environments