Datasheet

0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0.0001 0.001 0.01 0.1 1
I -OutputCurrent- A
O
V =1.3V,
T =25°C,
PFMMode
O
A
3.3V
4.2V
5V
3.8V
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0.0001 0.001 0.01 0.1 1
I -OutputCurrent- A
O
V =1.3V,
T =25°C,
PWMMode
O
A
4.2V
5V
3.3V
3.8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)
TPS65053
TPS650531
TPS650532
SLVS754C – MARCH 2007 – REVISED SEPTEMBER 2009 ............................................................................................................................................. www.ti.com
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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