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TPS54519RTE Datasheet(PDF) 5 Page - Texas Instruments |
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TPS54519RTE Datasheet(HTML) 5 Page - Texas Instruments |
5 / 17 page 0 10 20 30 40 50 60 70 80 90 100 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Current (A) VIN = 3.3 V VIN = 5 V G001 0 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 Output Current (A) VIN = 3.3 V VIN = 5 V G002 www.ti.com Test Setup and Results 2.2 Efficiency The efficiency of this EVM peaks at a load current of about 0.5 A – 1 A and then decreases as the load current increases towards full load. Figure 1 shows the efficiency for the TPS54519EVM-037 at an ambient temperature of 25 °C. Figure 1. TPS54519EVM-037 Efficiency Figure 2 shows the efficiency for the TPS54519EVM-037 at lower output currents between 0.02 A and 0.20 A at an ambient temperature of 25 °C. Figure 2. TPS54519EVM-037 Low Current Efficiency The efficiency may be lower at higher ambient temperatures, due to temperature variation in the drain-to-source resistance of the internal MOSFET. 5 SLVU523 – September 2011 TPS54519EVM-037, 5-A, SWIFT ™ Regulator— Evaluation Module Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated |
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