Datasheet

LT3430/LT3430-1
5
34301fa
JUNCTION TEMPERATURE (°C)
–50
FREQUENCY (kHz)
50 100
3430 G10
0
25 75
230
220
210
200
190
180
170
–25 125
(LT3430)
LOAD CURRENT (A)
0
INPUT VOLTAGE (V)
3430 G11
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
7.5
7.0
6.5
6.0
5.5
5.0
MINIMUM INPUT
VOLTAGE TO START
MINIMUM INPUT
VOLTAGE TO RUN
T
A
= 25°C
SWITCH CURRENT (A)
0123
BOOST PIN CURRENT (mA)
3430 G12
90
80
70
60
50
40
30
20
10
0
T
A
= 25°C
JUNCTION TEMPERATURE (°C)
–50
1.5
1.7
2.1
25 75
3430 G13
1.3
1.1
–25 0
50 100 125
0.9
0.7
1.9
THRESHOLD VOLTAGE (V)
SWITCH CURRENT (A)
0123
SWITCH VOLTAGE (mV)
3430 G14
450
400
350
300
250
200
150
100
50
0
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
JUNCTION TEMPERATURE (°C)
–50
SWITCH MINIMUM ON TIME (ns)
400
500
600
25 75
3430 G15
300
200
–25 0
50 100 125
100
0
JUNCTION TEMPERATURE (°C)
–50
SWITCH PEAK CURRENT LIMIT (A)
50 100
3430 G16
0
25 75
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
–25 125
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Frequency
Minimum Input Voltage with
5V Output BOOST Pin Current
V
C
Pin Shutdown Threshold Switch Voltage Drop
Switch Peak Current Limit
Switch Minimum ON Time
vs Temperature