Datasheet

Temperature (°C)
Regulated FBx Voltage (mV)
–40 –15 10 35 60
85
110 135 160
795
796
797
798
799
800
801
802
803
804
805
Duty Cycle (%)
Peak Current Sense Voltage (mV)
0
10
20
30
40
50
60
70
80
0 10 20 30 40 50 60 70
80 90
100
V = 8 V
IN
V = 12 V
IN
FBx Voltage (V)
Peak Current Sense Voltage (mV)
0 0.2 0.4 0.6
0.8
0
10
20
30
40
50
60
70
80
Output Voltage (V)
Sense Current (µA)
0
1 2
3
4
5
6
7 8 9
10
11 12
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
150°C
25°C
COMPx Voltage (V)
Peak Current Sense Voltage (mV)
SYNC = LOW
SYNC = HIGH
0.65
0.8 0.95
1.1
1.25
1.4
1.55
–37.5
–25
–12.5
0
12.5
25
37.5
50
62.5
75
BOTH BUCKS ON
ONE BUCK ON
NEITHER BUCK ON
Quiescent Current (µA)
Temperature (°C)
0
10
20
30
40
50
60
-40 -15 10 35 60
85
110 135 160
TPS43330-Q1
TPS43332-Q1
www.ti.com SLVSA82E –MARCH 2011–REVISED APRIL 2013
TYPICAL CHARACTERISTICS (continued)
NO-LOAD QUIESCENT CURRENT BUCKx PEAK CURRENT LIMIT
versus versus
TEMPERATURE COMPx VOLTAGE
Figure 14. Figure 15.
CURRENT-SENSE PINS INPUT CURRENT (BUCK) FOLDBACK CURRENT LIMIT (BUCK)
Figure 16. Figure 17.
REGULATED FBx VOLTAGE CURRENT LIMIT
versus versus
TEMPERATURE (BUCK) DUTY CYCLE (BUCK)
Figure 18. Figure 19.
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