TPS54320_15 Datasheet, PDF (9/42 Pages) Texas Instruments – TPS54320 4.5- to 17-V Input, 3-A Synchronous Step Down SWIFT™ Converter

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Typical Characteristics (continued)
8
7
T_J = 150°C ^TJ ^{= 25°C}
T_J = -40°C
6
5
4
3
8
13
18
V_I - Input Voltage - V
Figure 13. High-Side Current Limit Threshold vs Input
Voltage
6
RT = 100 kW,
V_I = 12 V,
I_O = 2 A
5
4
3
-50 -25
0
25
50
75 100 125 150
T_J - Junction Temperature - °C
Figure 15. Minimum Controllable Duty Ratio vs Junction
Temperature
TPS54320
SLVS982B – AUGUST 2010 – REVISED NOVEMBER 2014
120
V_I = 12 V,
I_O = 2 A
110
100
90
80
70
-50 -25
0
25
50
75 100 125 150
T_J - Junction Temperature - °C
Figure 14. Minimum Controllable On-Time vs Temperature
2.2
2.15
2.1
2.05
2
-50 -25
0
25
50
75 100 125 150
T_J - Junction Temperature - °C
Figure 16. BOOT-PH UVLO Threshold vs Temperature
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