The TPS40200EVM-002 is an evaluation module for TPS40200 non synchronous buck controller. It provides a resistor selected 3.3V output voltage that delivers up to 2.5A from a 24V input bus. The TPS40200 is a flexible non synchronous controller with a built in 200mA driver for P channel FETs. The evaluation module 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 200KHz clock frequency as determined by an external resistor and capacitor. The TPS40200EVM-002 is designed to operate with an 18V to 36V input and to produce a regulated 3.3V output with a load current from 0.125A to 2.5A. This module 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 evaluation module can be modified to support output voltages from 0.7V to 5V and above, by changing a single feedback resistor.
18V to 36V input range
3.3V output, adjustable with single feedback resistor
0.125A to 2.5A steady state output current
200KHz switching frequency
Single P channel MOSFET and single rectifier
Two layer, 1.275inch x 1.675inch, surface mount design with all components on one side
Convenient test points for probing critical waveforms and noninvasive loop response testing
ESD sensitive device, take proper precaution while handling the device.
This EVM should be operated within the input voltage range of 0V to 36V and the output voltage range of 0V and 6.3V. Exceeding the specified input voltage range may cause damage to the EVM.
