LTC3314A
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
Minimum On-Time vs
Temperature
Feedback Voltage
Minimum On-Time vs VIN
505
504
503
502
501
500
499
498
497
496
495
80
70
60
50
40
30
20
80
70
60
50
40
30
20
150°C
25°C
–50°C
V
V
V
= 2.25V
= 3.3V
= 5.5V
IN
IN
IN
–50 –25
0
25 50 75 100 125 150
2
2.5
3
3.5
4
4.5
5
5.5
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
3314A G01
3314A G02
3314A G03
Default Switching Frequency
vs VIN
Switch On-Resistance vs VIN
Switch On-Resistance
20
18
16
14
12
10
8
25
20
15
10
5
2.20
2.16
2.12
2.08
2.04
2.00
1.96
1.92
1.88
1.84
1.80
V
IN
= 3.3V
TOP SWITCH
BOTTOM SWITCH
TOP SWITCH
BOTTOM SWITCH
6
4
2
0
0
2
2.5
3
3.5
4
4.5
5
5.5
–50 –25
0
25 50 75 100 125 150
2
2.5
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
3314A G04
3314A G05
3314A G06
Switching Frequency vs
Temperature
Default Switching Frequency
Switching Frequency vs RT
2.20
2.16
2.12
2.08
2.04
2.00
1.96
1.92
1.88
1.84
1.80
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
2.20
2.16
2.12
2.08
2.04
2.00
1.96
1.92
1.88
1.84
1.80
R = 34.8kΩ
T
V
V
V
= 2.25V
= 3.3V
= 5.5V
IN
IN
IN
V
V
V
= 2.25V
IN
IN
IN
= 3.3V
= 5.5V
–50 –25
0
25 50 75 100 125 150
20 25 30 35 40 45 50 55 60 65 70 75
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
RESISTANCE (kΩ)
TEMPERATURE (°C)
3314A G07
3314A G08
3314A G09
Rev. 0
5
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