PEC025AAN datasheet(8/25 Pages) TI1

Part #	PEC025AAN

Description	TPS55340EVM-147, 6V to 18V Input, 12V Output SEPIC Evaluation Module

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Manufacturer	TI1 [Texas Instruments]

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C3: ILb (1.00 A/div)

C2: SW (20.0 V/div)

C1: VOUT AC Coupled (20 mV/div)

Timebase (2.00 µs/div)

C4: ILa (1.00 A/div)

C3: ILb (1.00 A/div)

C2: SW (20.0 V/div)

C1: VOUT AC Coupled (50 mV/div)

Timebase = 2.00 µs/div

C4: ILa (1.00 A/div)

Test Setup and Results

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Figure 8 shows the TPS55340EVM-147 output voltage ripple and inductor current ripple. The output

current is the rated full load of 1A and V

IN = 18V. The ripple voltage is measured directly across the output

capacitors.

Figure 8. TPS55340EVM-147 V

IN = 18V Output Ripple

Figure 9 shows the TPS55340EVM-147 output voltage ripple, inductor current ripple and switching

waveform while operating in discontinuous conduction mode (DCM). The input voltage is 12V and the

output is loaded with 60

Ω.

Figure 9. TPS55340EVM-147 DCM Output Ripple

8

TPS55340EVM-147, 6V to 18V Input, 12V Output SEPIC Evaluation Module

SLVU742 – June 2012

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