LT3430 Linear Technology, LT3430 Datasheet - Page 5
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LT3430
Manufacturer Part Number
LT3430
Description
High Voltage/ 3A/ 200kHz Step-Down Switching Regulator
Manufacturer
Linear Technology
Datasheet
1.LT3430.pdf
(28 pages)
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TYPICAL PERFOR A CE CHARACTERISTICS
230
220
210
200
190
180
170
2.1
1.5
0.9
0.7
1.9
1.7
1.3
1.1
–50
–50
Switching Frequency
V
C
Pin Shutdown Threshold
–25
–25
JUNCTION TEMPERATURE ( C)
JUNCTION TEMPERATURE ( C)
0
0
25
25
50
50
75
75
W
100
100
3430 G13
3430 G10
U
125
125
450
400
350
300
250
200
150
100
7.5
7.0
6.5
6.0
5.5
5.0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
50
0
–50
0
0
Minimum Input Voltage
with 5V Output
Switch Voltage Drop
Switch Peak Current Limit
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
–25
JUNCTION TEMPERATURE ( C)
SWITCH CURRENT (A)
LOAD CURRENT (A)
0
1
MINIMUM INPUT
VOLTAGE TO START
MINIMUM INPUT
VOLTAGE TO RUN
T
25
J
= 25 C
50
T
T
2
J
J
75
= –40 C
= 125 C
100
3430 G11
3430 G14
3430 G16
125
3
600
500
200
400
300
100
90
80
70
60
50
40
30
20
10
0
0
–50
0
BOOST Pin Current
Switch Minimum ON Time
vs Temperature
–25
JUNCTION TEMPERATURE ( C)
SWITCH CURRENT (A)
0
1
25
50
LT3430
2
75
sn3430 3430is
100
3430 G15
3430 G12
5
125
3