Texas Instruments Introduces The TPS2500 and TPS2501, Two Integrated Products to Provide Power and Protection for USB Ports

Tue, Oct 20th, 2009. In Embedded Device, Power, Semiconductor
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The TPS2500 and TPS2501 incorporate a boost switching regulator with an onboard current-limiting switch that saves space and cost by providing an integrated solution that meets 5-V USB power requirements from a 1.8 – 5.25V input. The output current limit can be programmed via an external resistor from as low as 130 mA to as high as 1400 mA, supporting up to two USB ports from a single device. The TPS2500 features a pulse-skipping mode for high efficiency at light loads, while the TPS2501 employs fixed-frequency operation across the load range for EMI sensitive designs. Both devices are designed for battery powered portable devices, set top boxes, printers or any USB application without native 5V supply…

Functional Block Diagram of TPS2500

Functional Block Diagram of TPS2500 (Click for Enlarge)

 

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Functional Block Diagram of TPS2501

Functional Block Diagram of TPS2500 (Click for Enlarge)
(Pictures: Texas Instruments)


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    Terms:
    Block Diagrams- Set-Top Boxes