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Description
1.1
Applications
1.2
Features
Description
The TPS40130EVM-001 is designed to use a regulated 12-V (10-V to 14-V) bus to produce a high current,
regulated 1.5-V output at up to 40 A of load current. The TPS40130EVM-001 uses a number of advanced
technologies to improve its performance. Lossless DCR current sensing eliminates the need for a current
sense resistor, reduces losses, and improves efficiency. A unity gain amplifier provides accurate,
integrated remote sense capabilities for highly accurate, point of load regulated output voltages.
Independent, programmable overvoltage protection (OVP) provides accurate overvoltage protection, even
as the user adjusts the output voltage, or accidentally shorts the feedback pin to ground.
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Nonisolated High Current Point of Load and Low Voltage Bus Converters
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Video Graphic Adaptors
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Internet Servers
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Networking Equipment
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Telecommunications Equipment
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DC Power Distributed Systems
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91% Peak and 89% Full Load Efficiency at 10-V Input
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10-V to 14-V Input Range
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1.5-V Fixed Output, Adjustable with Single Resistor
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40-Adc Steady State Output Current
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330-kHz per Phase Operation (660-kHz Output Ripple)
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Single Main Switch MOSFET and Dual Synchronous Rectifier MOSFET for Each Phase
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Single Component Side, Surface Mount Design (4.5"
×
4.0”)
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Current Mode Control with Forced Current Sharing
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Four Layer PCB with all Components on Top Side
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Convenient Test Points for Probing Critical Waveforms and Noninvasive Loop Response Testing
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5-V LDO for Single Supply Operation
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Space for the TPS40120 Digitally Controlled Resistor Network for 6-Bit VID Control (Not Populated)
12-V Input, 1.5-V Output, 40-A Two Phase Synchronous Buck Converter Using the TPS40130
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SLUU208 – October 2004
