TPS55340
SLVSBD4 –MAY 2012
www.ti.com
TYPICAL CHARACTERISTICS
Vin = 5 V, TA = 25°C (unless otherwise noted)
400
380
360
340
320
300
8
7
6
5
4
3
2
1
−50
−25
0
25
50
75
100
125
150
−50
−25
0
25
50
75
100
125
150
Temperature (°C)
Temperature (°C)
G001
G002
Figure 1. Error Amplifier Transconductance vs
Temperature
Figure 2. Switch Current Limit vs Temperature
1.23
1.228
1.226
1.224
1.222
1.22
120
100
80
60
40
20
0
VIN = 3 V
VIN = 12 V
VIN = 5 V
−50
−25
0
25
50
75
100
125
150
−50
−25
0
25
50
75
100
125
150
Temperature (°C)
Temperature (°C)
G003
G004
Figure 3. Feedback Voltage Reference vs Temperature
Figure 4. RDS(ON) vs Temperature
1600
1400
1200
1000
800
600
400
200
0
1400
1200
1000
800
600
400
200
0
RFREQ = 40 kΩ
RFREQ = 80 kΩ
RFREQ = 480 kΩ
30
100
500
−50
−25
0
25
50
75
100
125
150
Temperature (°C)
Resistance (kΩ)
G005
G006
Figure 5. Frequency vs FREQ Resistance
Figure 6. Frequency vs Temperature
6
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