TPS40131RHBT
两相集成MOSFET驱动器同步降压控制器 TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFET DRIVERS
DESCRIPON
The TPS40131 is a two-phase synchronous buck controller that is optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.
FEATURES
• Supports 5-V Output
• Two-Phase Interleaved Operation
• Operates With Pre-Biased Outputs
• 1-V to 40-V Power Stage Operation Range
• Requires VIN5 @ 50 mA typ Depending on External MOSFETs and Switching Frequency
• 10-μA Shutdown Current
• Programmable Switching Frequency up to 1 MHz/Phase
• Current Mode Control with Forced Current Sharing
• Better than 1% Internal 0.7-V Reference
• Resistive Divider Sets Direct Output Over Voltage Threshold.
• Programmable Input Undervoltage Lockout
• True Remote Sensing Differential Amplifier
• Resistive or Inductor’s DCR Current Sensing
• 32-Pin QFN Package
• Can Be Used with TPS40120 to Provide a 6-Bit Digitally Controlled Output
APPLICATIONS
• Point-of-Load Converter
• Graphic Cards
• Internet Servers
• Networking Equipment
• Telecommunications Equipment
• DC Power Distributed Systems