Texas Instruments TPS62065 Switch User Manual


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Time(4 s/div)m
V :
50mV/div
OUT
SW:
2V/div
I :
200mA/div
COIL
V =3.6V
V =1.8V
IN
OUT
L=1.2 H
C =10 F
m
m
OUT
I =20mA
MODE=GND
OUT
TYPICALOUTPUTVOLTAGERIPPLE(PFMMODE)
Time(100ns/div)
I :
500mA/div
COIL
V :
50mV/div
OUT
SW:
2V/div
TYPICALOUTPUTVOLTAGERIPPLE(PWMMODE)
V =3.6V
V =1.8V
IN
OUT
L=1.2 H
C =10 F
m
m
OUT
I =500mA
MODE=GND
OUT
TPS62065/67EVM Test Data
www.ti.com
6.4 Output Voltage Ripple (Power-Save Mode)
Figure 8 and Figure 9 show the typical output voltage ripple for the TPS62065 in PFM and PWM modes,
respectively, with the TPS62065EVM.
Figure 8. TPS62065 Output Voltage Ripple (PFM Mode)
Figure 9. TPS62065 Output Voltage Ripple (PWM Mode)
10
TPS62065/67EVM SLVU364–March 2010
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