Datasheet

I -LoadCurrent-mA
O
Efficiency-%
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000
V =2.7V
PFM/PWMOperation
I
V =3.6V
PFM/PWMOperation
I
V =4.2V
PFM/PWMOperation
I
V =1.2V
O
1 10 100 1000
Efficiency-%
I -LoadCurrent-mA
O
L =muRataLQM21PN1R0
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
L = Aircoil(0.5 H,DCR=20m )m W
V =3.6V
V =1.8V(TPS62660)
PFM/PWMOperation
I
O
L =muRataLQM21PN0R54
0 50 100 150 200 250 300 350 400 450 500 550 600
I -LoadCurrent-mA
O
V -Peak-to-PeakOutputRippleVoltage-mV
O
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
V =1.8V(TPS62660)
O
V =4.8V
I
V =3.6V
I
V =2.5V
I
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
V -InputVoltage-V
I
Efficiency-%
V =1.8V(TPS62660)
PFM/PWMOperation
O
I =300mA
O
I =100mA
O
I =1mA
O
TPS62660, TPS62665
www.ti.com SLVS871C –FEBRUARY 2010– REVISED JULY 2011
TYPICAL CHARACTERISTICS (continued)
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 5. Figure 6.
EFFICIENCY PEAK-TO-PEAK OUTPUT RIPPLE VOLTAGE
vs vs
INPUT VOLTAGE LOAD CURRENT
Figure 7. Figure 8.
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