LT3433
TYPICAL PERFOR A CE CHARACTERISTICS
Soft-Start Current vs Temperature
7.0
6.5
6.0
1.232
SWITCH CURRENT LIMIT (mA)
ERROR AMP REFERENCE (V)
I
SS
(µA)
5.5
5.0
4.5
4.0
–50
0
50
TEMPERATURE (°C)
Oscillator Frequency
vs Temperature
210
OSCILLATOR FREQUENCY (kHz)
205
OSCILLATOR FREQUENCY (kHz)
200
CURRENT LIMIT (mA)
195
190
–50
0
50
TEMPERATURE (°C)
Maximum Boost Supply Switch
Drive Current vs Boost Supply
Voltage
70
70
65
I
VOUT
/I
SW
(mA/A)
I
BST
/I
SW
(mA/A)
60
55
50
45
4
5
6
9
10
V
BST
– V
SW_H
(V)
7
8
11
12
4
U W
100
3433 G03
Error Amp Reference
vs Temperature
700
Switch Current Limit vs V
FB
T
A
= 25°C
1.231
600
1.230
500
1.229
400
125
1.228
–50
300
0
50
TEMPERATURE (°C)
100
125
0
0.2
0.6
0.4
V
FB
(V)
0.8
1.0
3433 G05
3433 G04
Oscillator Frequency vs V
FB
200
T
A
= 25°C
150
725
750
Switch Current Limit
vs Temperature
100
700
50
675
100
125
0
0
0.2
3433 G06
0.6
0.4
V
FB
(V)
0.8
1.0
3433 G07
650
–50
0
50
TEMPERATURE (°C)
100
125
3433 G08
Maximum Output Supply Switch
Drive Current vs Output Supply
Voltage
65
60
55
50
45
4
5
6
7
8
V
OUT
(V)
3433 G09
3433 G10
9
10
11
12
3433ia
LINER [ LINEAR TECHNOLOGY ]
