Datasheet

V =50mV/div
O
I =200mA/div
L
t-Time-5ms/div
V =3.3V,
V =5V,
I =0mA
I
O
O
V =50mV/div
O
I =200mA/div
L
t-Time-0.2 s/divm
V =3.3V,
V =5V,
I =310mA
I
O
O
V =50mV/div
O
I =200mA/div
L
t-Time-0.2 s/divm
V =3.3V,
V =5V,
I
O
TPS61252 EVM Test Data www.ti.com
5.3 Output Voltage Ripple
Figure 6. TPS61252 EVM Output Voltage Ripple at No Figure 7. TPS61252 EVM Output Voltage Ripple at
Load Load Limit
Figure 8. TPS61252 EVM Output Voltage Ripple at Overload
5.4 Control Loop Bode Diagram
The stability was measured with an input voltage of 3.3 V and an output current of 244 mA. The crossover
frequency of 47 kHz and the phase margin of 42° correlate with the good load transient response of the
part.
Figure 9. TPS61252 EVM Gain and Phase vs. Frequency
6
TPS61252 Evaluation Module SLVU408–October 2010
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