TPS40200评估模块

weiweizsz_30000

  TPS40200EVM-002 评估模块使用TPS40200 非同步降压控制器，提供一个电阻选择3.3 V的输出电压，从24 V输入总线，可提供高达2.5 A的电流 。The EVM operates from a single supply and uses a single P-channel power FET and Schottky Diode to produce a low cost buck converter. The part operates at a 200 kHz clock frequency as determined by an external resistor and capacitor. TPS40200EVM-002 is designed to operate with an 18 to 36 V input and to produce a regulated 3.3 V output with a load current from 0.125 to 2.5 A. The TPS40200EVM-002 demonstrates using the TPS40200 in a typical buck converter application. The board sacrifices some layout density to provide ample test points for module evaluation. This EVM can be modified to support output voltages from 0.7 V to 5 V and above, by changing a single feedback resistor. A table is included in the User Guide that lists specific 1% resistors for some common output voltages.

特性

       

• 18 V to 36 V input range       
  
• 3.3 V output, adjustable with single feedback resistor       
  
• 0.125 A to 2.5 A steady-state output current       
  
• 200 kHz switching frequency       
  
• Single P-channel MOSFET and single rectifier       
  
• Two-layer, 1.275 inch x 1.675 inch, surface-mount design with all components on one side       
  
• Convenient test points for probing critical waveforms and noninvasive loop response testing