TPS61253_16 Datasheet, PDF (8/35 Pages) Texas Instruments – High Efficiency Step-Up Converter In Chip Scale Packaging

TPS61253, TPS61254, TPS61256, TPS61258, TPS61259, TPS612592
SLVSAG8F – SEPTEMBER 2011 – REVISED MARCH 2016
7.6 Typical Characteristics
Table 1. Table of Graphs
η
V_O
I_O
ΔV_O
I_CC
I_LIM
r_DS(on)
Efficiency
DC output voltage
Maximum output current
Peak-to-peak output ripple voltage
Supply current
DC pre-charge current
Valley current limit
MOSFET r_DS(on)
vs Output current
vs Input voltage
vs Output current
vs Input voltage
vs Input voltage
vs Output current
vs Input voltage
vs Differential input-output voltage
vs Temperature
vs Temperature
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FIGURE
Figure 1, Figure 2,
Figure 3, Figure 5
Figure 4
Figure 6, Figure 7,
Figure 8, Figure 9,
Figure 10,
Figure 14
Figure 11
Figure 12,
Figure 13
Figure 15,
Figure 16,
Figure 17
Figure 18,
Figure 19
Figure 20,
Figure 21
Figure 22,
Figure 23
Figure 24
100
95 ^{VI = 4.5 V}
90
85
V_I = 3.3 V
80
V_I = 2.7 V ^VI ^{= 3 V}
V_I = 3.6 V
75
V_I = 2.5 V
70
65
60
55
V_O = 4.5 V
PFM/PWM Operation
50
0.1
1
10
100
1000
I_O - Output Current - mA
Figure 1. Efficiency vs Output Current
100
V_O = 5 V (TPS61256)
95 PFM/PWM Operation
V_I = 4.5 V
90
85
V_I = 3.6 V
80
75
V_I = 2.7 V ^{VI = 3 V VI = 3.3 V}
70
V_I = 2.5 V
65
60
55
50
0.1
1
10
100
1000
I_O - Output Current - mA
Figure 2. Efficiency vs Output Current
8
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