Manufacturer Part Number
TPS40400RHLT
Manufacturer
Texas Instruments
Introduction
The TPS40400RHLT is a flexible, multi-featured, programmable synchronous step-down controller from Texas Instruments, designed for precision power delivery in a variety of applications.
Product Features and Performance
Flexible programmable operating parameters
High-performance step-down regulation
Wide voltage supply range from 3V to 20V
Adjustable switching frequency: 200kHz to 2MHz
High duty cycle up to 90% for low dropout operations
Integrated synchronous rectifier for improved efficiency
Clock synchronization feature to reduce noise
Supports PMBus communication for system integration
Includes Power Good and Tracking control features
Thermal regulation for consistent performance
Two current sensing methods: lossless inductor DCR sensing and precise resistor sensing
Product Advantages
Optimized for precision and efficiency
Designed for easy integration into complex systems
Reduces system power losses
Flexibility in power supply design
Robust thermal management
Advanced communication interface (PMBus)
Key Technical Parameters
Single output with positive output configuration
Buck topology for step-down conversion
One output phase
Duty cycle maximum: 90%
Operating temperature range: -40°C to 125°C (TJ)
Surface mount device with 24-VFQFN Exposed Pad
Quality and Safety Features
Built-in safeguards against thermal overload
Protection against under-voltage and over-voltage conditions
Short-circuit protection
Compatibility
Compatible with a wide range of microcontrollers and digital systems via PMBus
Suitable for use with varied input sources within the 3V - 20V supply range
Application Areas
Data center and telecom power systems
Networking and storage systems
FPGAs, ASICs, and processor power supplies
Industrial power systems
Aftermarket power solutions
Product Lifecycle
Currently active and in production
Long-term availability with potential future upgrades for next-generation parts
Several Key Reasons to Choose This Product
High integration level reduces external component count
Customizable to a wide array of power supply requirements
High reliability and built-in protection features
Enhanced power density for space-constrained applications
Advanced power management features for precise control
Adaptable and future-proof with programmable functions and upgrades
Industry-leading performance by Texas Instruments
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