Datasheet

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0
10
20
30
40
50
60
70
80
90
100
0.0001 0.001 0.01 1
Efficiency − %
I − OutputCurrent
O
− A
0.1
V =1.3V
T =25 C
PFMMode
O
A
o
3.3V
5V
4.2V
3.8V
0
10
20
30
40
50
60
70
80
90
100
0.0001 0.001 0.01 1
Efficiency − %
I − OutputCurrent
O
− A
0.1
V =1.3V
T =25 C
PWMMode
O
A
o
3.8V
3.3V
5V
4.2V
t − Time=500ns/div
100
mA/div
20
mV/div
V =4.2V, =25 C
I
o
T
A
100mA/div
CH4(I
L
DCDC1=600mA)
CH3(I
L
DCDC2=600mA)
CH1(VDCDC1=3.3V)
CH1(VDCDC2=1.5V)
20
mV/div
t − Time=2 s/divm
200
mA/div
200
mA/div
20
mV/div
V =4.2V, =25 C
I
o
T
A
CH4(I
L
DCDC1=80mA)
CH1(VDCDC1=3.3V)
CH2 (VDCDC2=1.5V)
20
mV/div
CH3(I
L
DCDC2=80mA)
TPS65050, TPS65051, TPS65052
TPS65054, TPS65056
SLVS710A – JANUARY 2007 – REVISED AUGUST 2007
EFFICIENCY EFFICIENCY
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 3. Figure 4.
OUTPUT VOLTAGE RIPPLE OUTPUT VOLTAGE RIPPLE
PWM/PFM MODE = LOW PWM MODE = HIGH
Figure 5. Figure 6.
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Product Folder Link(s): TPS65050, TPS65051, TPS65052 TPS65054, TPS65056