Manufacturer Part Number
PM6644TR
Manufacturer
STMicroelectronics
Introduction
Power Management Integrated Circuit for DC-DC Buck Conversion
Product Features and Performance
Step-Down (Buck) Regulator
Adjustable Output Voltage
Single Output Channel
Support for Synchronous Rectification
Wide Input Voltage Range from 4.5V to 25V
Adjustable Switching Frequency from 200kHz to 600kHz
Product Advantages
High-Efficiency Conversion
Low RDS(on) for Improved Power Efficiency
Compact 10-VFDFN Exposed Pad Package
Thermal Shutdown and Overcurrent Protection
Low Dropout Operation
Key Technical Parameters
Min Input Voltage: 4.5V
Max Input Voltage: 25V
Min/Fixed Output Voltage: 0.9V (3.47V)
Max Output Voltage: 8V
Output Current: 350mA
Frequency - Switching: 200kHz ~ 600kHz
Operating Temperature Range: -40°C ~ 125°C
Quality and Safety Features
Over Temperature Protection
Current Overload Protection
Built-In Soft Start Function to Limit Inrush Current
Compatibility
Compatible with Surface Mount Technology (SMT)
Standard 10-DFN (3x3) Package Compatible with Automated Assembly Processes
Application Areas
Consumer Electronics
Portable Devices
Telecommunications
Networking Hardware
Point of Load Power Supplies
Product Lifecycle
Currently Active Product
No Indication of Discontinuation
Replacements or Upgrades Should be Monitored on Manufacturer's Site
Several Key Reasons to Choose This Product
Optimized for Low Voltage Applications
Robust Thermal Performance for Reliability
Flexible and Wide Input Voltage Range Suitable for Various Power Supplies
Simplified Design with Integrated MOSFETs
High-Efficiency Output Suitable for Battery-Powered Devices
Adaptable Switching Frequency for EMI Reduction Strategies
\Support and Documentation Available from STMicroelectronics