TPS40200EVM-001: 3.3V @ 2.5A, 8 ~ 16 Vin

Summary

The TPS40200EVM-001 evaluation module (EVM) uses the TPS40200 nonsynchronous buck converter to provide a resistor-selected 3.3-V output voltage that delivers up to 2.5 A from a 12-V input bus. 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 300-kHz clock frequency with provision for external frequency synchronization.

TPS40200EVM-001 is designed to operate with an 8-V to 16-V input and to produce a regulated 3.3-V output with a load current from 0.125 A to 2.5 A. The TPS40200EVM-001 demonstrates the use of the TPS40200 in a typical buck converter application.

The board sacrifices some packing density to provide sample test points for module evaluation. This EVM can be modified to support output voltages from 0.7 V to 5 V by changing a single feedback resistor. The TPS40200EVM-001 has been built to the sample application as described in the Application Information section of the TPS40200 data sheet (SLUS659).

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-19607-ND
Eval Board Supplier	Texas Instruments
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	2.5 A
Voltage In	8 ~ 16 V
Efficiency @ Conditions	>90%, 8V in, 3.3V @ 0.3 ~ 1.5 A >86%, 12V in, 3.3V @ 0.4 ~ 2.5 A
Voltage Out Range
Features	Over Current Protection Short Circuit Protection Soft Start Synchronizable
Switching Frequency	300 kHz
Standby Current [Typical]
Quiescent Current [Typical]	1.5 mA
Component Count + Extras	30 + 20
Internal Switch	No
Design Author	Texas Instruments
Application / Target Market	Computers Point of Load (PoL) Telecom
Standby Current [Maximum]
Quiescent Current [Maximum]	3 mA
Main I.C. Base Part	TPS40200D
Date Created By Author
Date Added To Library	2011-03