Datasheet

I − OutputCurrent − mA
OUT
0
10
20
30
40
90
100
1 10 100 1000
h Efficiency − %−
50
60
V =1.2V
MODE=V
L =2 H
MIPSA2520
C =10 F0603
OUT
IN
OUT
m
m
70
80
G004
V =3.6V
IN
V =4.5V
IN
V =2.7V
IN
I − OutputCurrent − mA
OUT
0
10
20
30
40
90
100
0.01 0.1 100 1000
h − Efficiency − %
50
60
V =2.7V
IN
V =3.6V
IN
V =4.5V
IN
V =1.2V
MODE=GND
L =2 H
MIPSA2520
C =10 F0603
OUT
OUT
m
m
70
80
101
G005
TimeBase-10 s/Divm
V 3.6V
V 1.8V,I 150mA
L 2.2 H,C 10 F0603
IN
OUT OUT
OUT
m m
V 10mV/Div
OUT
SW2V/Div
I
COIL
200mA/Div
TimeBase-1 s/Divm
MODE
2V/Div
SW
2V/Div
I
200mA/Div
coil
V =3.6V
V =1.8V
I =10mA
IN
OUT
OUT
PFMMode
ForcedPWMMode
TPS62560, TPS62561
TPS62562
SLVS815C –JANUARY 2008–REVISED DECEMBER 2009 www.ti.com
EFFICIENCY (Forced PWM Mode) EFFICIENCY
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 6. Figure 7.
MODE TERMINAL TRANSITION FROM PFM
TYPICAL OPERATION (PWM Mode) TO FORCED PWM MODE AT LIGHT LOAD
Figure 8. Figure 9.
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