Texas Instruments 12V Input, 1.5V Output, 10A Sync Buck Converter Evaluation Module TPS40190EVM-001 TPS40190EVM-001 Datenbogen
Produktcode
TPS40190EVM-001
User’s Guide
SLUU232 –February 2006
Using the TPS40190EVM-001
A 12V Input, 1.5V Output, 10A Synchronous Buck Converter
System Power Management – DC/DC Controllers
1 INTRODUCTION
The TPS40190EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed 1.5V output
at up to 10A from a 12V input bus. The EVM is designed to start up from a single supply, so no additional bias
voltage is required for start-up. The module uses the TPS40190 Reduced Pin Count Synchronous Buck
Controller.
at up to 10A from a 12V input bus. The EVM is designed to start up from a single supply, so no additional bias
voltage is required for start-up. The module uses the TPS40190 Reduced Pin Count Synchronous Buck
Controller.
1.1 DESCRIPTION
TPS40190EVM-001 is designed to use a regulated 12V (10V-14V) bus to produce a high current, regulated 1.5V
output at up to 10A of load current. The TPS40190EVM-001 is design to demonstrate the TPS40190 in a typical
regulated bus to low-voltage application while providing a number of test points to evaluate the performance of
the TPS40190 in a given application. The EVM can be modified to support output voltages from 0.9V to 3.3V by
changing a single set resistor.
output at up to 10A of load current. The TPS40190EVM-001 is design to demonstrate the TPS40190 in a typical
regulated bus to low-voltage application while providing a number of test points to evaluate the performance of
the TPS40190 in a given application. The EVM can be modified to support output voltages from 0.9V to 3.3V by
changing a single set resistor.
1.2 APPLICATIONS
• Non-Isolated Medium Current Point of Load and low voltage bus converters.
• Networking
Equipment
• Telecommunications
Equipment
• DC Power Distributed Systems
1.3 FEATURES
• 10V - 14V input range
• 1.5V fixed output, adjustable with single resistor
• 10Adc Steady State Output Current
• 300kHz switching frequency (Fixed by TPS40190)
• Single Main Switch N-channel MOSFET and Single Synchronous Rectifier N-channel MOSFET
• Double Sided 3” x 3” PCB with all components on top side
• Active Converter uses less than 1.2 square inches – 1.775 x 0.670
• Convenient test points for probing critical waveforms and non-invasive loop response testing