Manufacturer Part Number
TPS54494RSAR
Manufacturer
Texas Instruments
Introduction
The TPS54494RSAR is a dual-output, synchronous buck converter from Texas Instruments, designed for applications that require low output voltage and high efficiency.
Product Features and Performance
Dual synchronous step-down controller
Eco-Mode™ and D-CAP2™ modes for improved efficiency
Adjustable output voltage
High efficiency at 700 kHz switching frequency
Supports pre-biased startup
Programmable UVLO (Under Voltage Lock Out)
Over current and over-temperature protection
Product Advantages
Increased power density with two outputs
Enhanced power savings with Eco-Mode™ feature
Fast transient response due to D-CAP2™ architecture
Simple external circuit design
Key Technical Parameters
Input voltage range: 4.5V to 18V
Output voltage range: 0.76V to 7V
Output current: 4A for channel one, 2A for channel two
Switching frequency: 700kHz
Highly efficient synchronous rectification
Operating temperature range: -40°C to +85°C
Quality and Safety Features
Built-in thermal shutdown
Cycle-by-cycle overcurrent protection
Under-voltage lockout
Pre-biased startup capability
Compatibility
Compatible with a wide range of input voltages and applications
Application Areas
Computing
Consumer Electronics
Networking
Telecommunications
Industrial
Product Lifecycle
Active status with ongoing support
No indication of nearing discontinuation
Several Key Reasons to Choose This Product
Dual-channel output increases system design flexibility
Energy-efficient operation lowers system power consumption
Texas Instruments' reputation for reliable and durable components
Comprehensive protection features ensure product longevity and safety
Extended operating temperature range fits a variety of environments
The component is available in a compact QFN package, suitable for space-constrained applications