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TPS65810 Datasheet, PDF (25/94 Pages) Texas Instruments – SINGLE-CELL Li-ION BATTERY- AND POWER-MANAGEMENT IC
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TPS65810
www.ti.com
SLVS658A – MARCH 2006 – REVISED MAY 2006
TYPICAL CHARACTERISTICS – SM1 AND SM2 BUCK CONVERTERS
Measured with Application Circuit shown in Figure 3, unless otherwise noted
EFFICIENCY IN AUTOMATIC
PWM/PFM MODE
92
90
88
86
84
82
80
VIN_SM2 = 4.6 V,
VO (SM2) = 1.8 V,
L = 3.3 mH.
78
CO(SM2) = 10 mF
76
0
0.1 0.2
0.3
0.4
0.5
0.6
0.7
IO - Output Current - A
Figure 14.
PFM OPERATION
100
90
80
70
60
50
40
30
20
10
0
0
PWM MODE
EFFICIENCY
vs
OUTPUT CURRENT
VIN_SM1 = 4 V,
VO(SM1) = 1.24 V,
L = 3.3 mH,
CO(SM1) = 10 mF
0.1
0.2
0.3
0.4
IO - Output Current - A
Figure 15.
0.5
0.6
PFM LOW RIPPLE OPERATION
AC = 5 V,
VIN_SM2 = 4.6 V,
VO(SM2 = 1.8 V
AC = 5 V,
VIN_SM2 = 4.6 V,
VO(SM2 = 1.8 V
IO(SM2)
L = 3.3 mF,
CO(SM2) = 10 mF
Figure 16.
IO(SM2)
L = 3.3 mF,
CO(SM2) = 10 mF
Figure 17.
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