Datasheet

Vin
Vout
LX
IL
Vin
Vout
LX
IL
3.25
3.27
3.29
3.31
3.33
3.35
3.37
3.39
0 0.5 1 1.5 2 2.5
Vout (V)
Iout (A)
Vin=6.5V
Vin=12V
Vin=28V
3.25
3.27
3.29
3.31
3.33
3.35
3.37
3.39
0 5 10 15 20 25 30
Vout (V)
Vin (V)
Io=0.1A
Io=2.0A
76.00%
78.00%
80.00%
82.00%
84.00%
86.00%
88.00%
90.00%
0 0.5 1 1.5 2 2.5
Efficiency (%)
Iout (A)
77.00%
78.00%
79.00%
80.00%
81.00%
82.00%
83.00%
84.00%
85.00%
86.00%
87.00%
0 0.01 0.02 0.03 0.04 0.05 0.06
Efficiency (%)
Iout (A)
TPS5402
SLVSBK4 –SEPTEMBER 2012 www.ti.com
TYPICAL CHARACTERISTICS
T
A
= 25°C, V
IN
= 12 V, V
OUT
= 3.3 V, f
SW
= 120 kHz (unless otherwise noted)
Figure 1. Efficiency Figure 2. Efficiency
V
IN
= 12 V, V
OUT
= 3.3 V V
IN
= 12 V, V
OUT
= 3.3 V
Figure 3. Load Regulation Figure 4. Line Regulation
V
IN
= 12 V, V
OUT
= 3.3 V V
OUT
= 3.3 V
Figure 5. Startup Figure 6. Steady State
2-A Preset Loading I
O
= 2 A
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