TPS40422EVM-091

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TPS40422EVM-091 is a high performance evaluation board from Texas Instruments for DC/DC and AC/DC (off-line) switch-mode power supply applications. This evaluation board is designed around TI’s synchronous rectifier (SR) buck controller with a low quiescent current TPS40422 and a scalable TPS40195 integrated 8 A power stage. It delivers a wide output voltage range, up to 0.9 V (34 V max. input voltage) with fast transient response. The TPS40422EVM-091 also incorporates external compensation components, enabling designers to have full control of the system.

The TPS40422EVM-091 is an evaluation system for power supply design with fast transient response and high efficiency. It integrates the industry leading TPS40422 integrated synchronous rectifier Buck controller powered with TI’s scalable TPS40195 integrated power stage. This evaluation board offers an exemplary architecture with robust features for high current, high frequency switched mode power supplies. This architecture is designed to deliver sought-after features such as input current monitoring, reset-less operation, remote sense, cycle-by cycle current limit, and fast response for improved transient performance and system accuracy.

As a first, the board is powered with two TPS40422 integrated synchronous rectifier buck controllers and a single TPS40195 8 A integrated power stage, enabling simultaneous monitoring of two current paths. Designers have the flexibility of configuring the TPS40422EVM-091 in various configurations that meet their specific requirements. It allows users to select two different output voltage ranges (0.9 V up to 34 V max. input voltage); a single low voltage output or dual high voltage outputs. It also supports current monitoring, remote sense, and cycle-by-cycle current limit.

Package size and routing are a key criterion in power supply designs, and the TPS40422EVM-091 takes advantage of its small size to offer a remarkable degree of design flexibility. Its efficient layout and heat-sink design enables users to achieve thermal dissipation to full load without active cooling. The TPS40422EVM-091 is designed with Keo IC’s DRC (Design Rule Check) technology in order to ensure a reliable, long-lasting board. It provides a low-cost, high performance path for efficiency, voltage regulation, and design cycles through a wide range of input voltage and output voltage combinations.

The TPS40422EVM-091 evaluation board comes with a set of on-board connectors, allowing designers to select the power source for their application. The board features an on-board external clock source, which allows users to achieve higher switching frequencies. Additionally, the board offers an I2C controlled Programmable Code Loop (PCL), which allows the user to quickly tune key parameters for best performance.

The TPS40422EVM-091 evaluation board is suitable for a variety of applications that require high performance DC/DC and AC/DC (off-line) switch-mode power supplies. Its voltage and current flexibility allows designers to easily customize the board for various applications such as distributed power systems, server systems, automotive, power tools, industrial equipment, and LED lighting. The board’s innovative features and low cost make it an attractive choice for applications where high efficiency, fast transient response, and low power consumption are critical.

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