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