Manufacturer Part Number
TPS54428DDAR
Manufacturer
Texas Instruments
Introduction
The TPS54428DDAR is a high-performance, adjustable output, step-down (buck) regulator.
Product Features and Performance
Step-down (Buck) topology
Adjustable output voltage
Positive output configuration
Synchronous rectification for improved efficiency
Capable of delivering 4A of output current
Operating frequency at 650kHz
Wide input voltage range from 4.5V to 18V
Output voltage adjustable from 0.76V to 7V
Supports D-CAP2™ and Eco-Mode™ for better transient response and efficiency
Product Advantages
High efficiency due to synchronous rectification
Broad input voltage range accommodates varying supply voltages
Compact 8-PowerSOIC package with PowerPad for improved thermal management
Key Technical Parameters
Input Voltage: 4.5V to 18V
Output Voltage: 0.76V to 7V
Output Current: 4A
Switching Frequency: 650kHz
Operating Temperature: -40°C to 85°C
Quality and Safety Features
Built-in thermal shutdown protection
Over-current and over-voltage protection
Under-voltage lockout
Compatibility
Compatible with a wide range of input voltages and output requirements for various applications
Application Areas
Distributed Power Systems
Telecommunications
Networking Equipment
Industrial Applications
Product Lifecycle
Product status is active
Not nearing discontinuation and ongoing support with possible updates
Several Key Reasons to Choose This Product
High efficiency and low power loss due to synchronous rectification
Flexible and adjustable output voltage for various design needs
Reliable performance with built-in safety features
Efficient thermal management with PowerSOIC package design
Active product with long-term support from Texas Instruments