TPS659121_16 Datasheet, PDF (26/145 Pages) Texas Instruments – PMU for Processor Power

TPS659121, TPS659122
SWCS071B – AUGUST 2012 – REVISED APRIL 2015
www.ti.com
100
90
V_I = 3.6 V
V_I = 4.2 V
80
V_I = 3 V
70
V_I = 5 V
60
50
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A
DCDC2 V_O = 1.8 V
PFM Mode
LQM2NPN-1 µH
25°C
Figure 5-10. DCDC2 Efficiency vs Output Current / PFM Mode
100
90
80
70
V_I = 4.2 V ^{VI = 3.6 V VI = 3 V}
V_I = 5 V
60
50
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A)
DCDC2 V_O = 2.25 V
PFM Mode
VLS201612-1 µH
25°C
Figure 5-12. DCDC2 Efficiency vs Output Current / PFM Mode
100
90
80
V_I = 3 V
70
V_I = 4.2 V ^{VI = 3.6 V}
60
V_I = 5 V
50
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A)
DCDC2 V_O = 2.95 V
PFM Mode
VLS201612-1 µH
25°C
Figure 5-14. DCDC2 Efficiency vs Output Current / PFM Mode
100
90
80
V_I = 3 V
70
V_I = 3.6 V
60
V_I = 4.2 V
50
V_I = 5 V
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A)
DCDC2 V_O = 1.8 V
PFM Mode
LQM2NPN-1 µH
25°C
Figure 5-11. DCDC2 Efficiency vs Output Current / PWM Mode
100
90
80
V_I = 3 V
70
V_I = 3.6 V
60
V_I = 4.2 V
50
V_I = 5 V
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A)
DCDC2 V_O = 2.25 V
PFM Mode
VLS201612-1 µH
25°C
Figure 5-13. DCDC2 Efficiency vs Output Current / PFM Mode
100
90
V_I = 3 V
80
70
V_I = 3.6 V
60
V_I = 4.2 V
50
V_I = 5 V
40
30
20
10
0
0.0001
0.001
0.01
0.1
1
10
Output Current (A)
DCDC2 V_O = 2.95 V
PFM Mode
VLS201612-1 µH
25°C
Figure 5-15. DCDC2 Efficiency vs Output Current / PWM Mode
26
Specifications
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