Texas Instruments 2.5A, 10.8 to 13.2 Vin, SWIFT™ Converter Evaluation Module TPS54260EVM-597 TPS54260EVM-597 Hoja De Datos
Los códigos de productos
TPS54260EVM-597
Vin = 200 mV / div (ac coupled)
PH = 5 V / div
Time = 2 usec /div
Vin = 10 V / div
Vout = 2 V / div
EN = 2 V / div
SS/TR = 2 V / div
Time = 5 msec / div
Test Setup and Results
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2.8
Input Voltage Ripple
The TPS54260EVM-597 input voltage ripple is shown in
. The output current is the rated full load
of 2.5 A and V
IN
= 12 V. The ripple voltage is measured directly across the input capacitors.
Figure 8. TPS54260EVM-597 Input Ripple
2.9
Powering Up
The start-up waveforms are shown in
. Start-up is relative to VIN rising. The input voltage is
initially applied, and when the input reaches the undervoltage lockout threshold, the start-up sequence
begins and the output ramps up at the externally set rate toward the set value of 3.3 V. The input voltage
for these plots is 12 V with a 2
begins and the output ramps up at the externally set rate toward the set value of 3.3 V. The input voltage
for these plots is 12 V with a 2
Ω
load.
Figure 9. TPS54260EVM-597 Start-Up Relative to V
IN
8
TPS54260EVM-597 2.5-A, SWIFT™ Regulator Evaluation Module
SLVU372 – March 2009
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