LM20242 Demonstration Board
Description
The LM20242 demonstration board is designed to provide the design engineer with a small: fully functional buck converter based on Current Mode Control to evaluate the LM20242 switching regulator IC. The demonstration board provides a 3.3V output with 2A current capability. The input voltage ranges from 8V to 18V: and is optimized for 12V. The design operates at 300KHz: a good compromise between conversion efficiency and solution size: and employs a soft-start sequence. The printed circuit board consists of 2 layers of 2 ounce copper on FR4 material with a thickness of 0.062 inches. Refer to the LM20242 datasheet for complete circuit design information.
Features
- InputsOutputs #1VinMin=8VVout1=3.3VVinMax=18VIout1=2AOptimized for 12V to 3.3V conversion2A output current: 89% efficiency1.5% output voltage accuracy300 kHz switching frequencyCurrent Mode ControlStarts up into pre-biased loadsSoft-start set by external capacitorPrecision enable pin with hysteresisOVP: UVLO inputs and PGOOD outputInternally protected with peak current limit: shutdown and restartAccurate current limit with frequency foldbackInput voltage range 8V to 18VApplicationsSimple to design: high efficiency point of load regulation from a 4.5V to 36V busHigh Performance DSPs: FPGAs: ASICs and MicroprocessorsCommunications Infrastructure: Automotive
Applications
Product Categories
- Power management