Datasheet

LT8609/LT8609A/LT8609B
6
Rev. H
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TYPICAL PERFORMANCE CHARACTERISTICS
Load Regulation Line Regulation
No-Load Supply Current
(3.3V Output)
V
IN
(V)
0
I
IN
(µA)
5.0
1.5
4.0
2.0
0.5
3.5
3.0
1.0
4.5
2.5
0.0
30
8609 G12
50402010
OUTPUT CURRENT (A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
–0.500
–0.400
–0.300
–0.200
–0.100
0.000
0.100
0.200
0.300
0.400
0.500
CHANGE IN V
OUT
(%)
8609 G10
INPUT VOLTAGE (V)
4.0
11.6
19.2
26.8
34.4
42.0
–0.20
–0.15
–0.10
–0.05
0.00
0.05
0.10
0.15
0.20
CHANGE IN V
OUT
(%)
Line Regulation
8609 G11
I
LOAD
= 1A
No-Load Supply Current
vs Temperature
Top FET Current Limit
vs Duty Cycle
Top FET Current Limit
vs Temperature
TEMPERATURE (°C)
–50
–10
30
70
110
150
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
3.3
INPUT CURRENT (µA)
No Load Supply Current Vs Temperature
8609 G13
V
IN
= 12V
V
OUT
= 3.3V
DUTY CYCLE (%)
0
20
40
60
80
100
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
TOP FET CURRENT LIMIT (A)
Top Fet Current Limit vs Duty Cycle
8609 G14
TEMPERATURE (°C)
–50
–10
30
70
110
150
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
I
SW
(A)
8609 G15
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