Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB3302
Switching Frequency
vs Temperature
1.7
TYPICAL PERFORMANCE CHARACTERISTICS
Feedback Voltage vs Temperature
1.3
100
R
OSC
vs Switching Frequency
R
OSC
= 7.68KΩ
Feedback Voltage (V)
1.6
1.25
V
IN
= 2V
R
OSC
(K
Ω
)
25ºC
10
Frequency (MHz)
V
IN
= 12V
1.5
V
IN
= 2V
1.2
1.4
1.15
-50
-25
0
25
50
75
100
125
1
0.0
0.5
1.0
1.5
2.0
2.5
3.0
1.3
-50
-25
0
25
50
75
100
125
Temperature (ºC)
Frequency (MHz)
Temperature (ºC)
Switch Saturation Voltage
vs Switch Current
400
3
Switch Current Limit
vs Temperature
1.5
Minimum V
IN
vs Temperature
V
CESAT
(mV)
85ºC
200
2.6
Input Voltage (V)
-50
-25
0
25
50
75
100
Current Limit (A)
300
25ºC
2.8
1.4
1.3
-40ºC
100
2.4
1.2
2.2
1.1
0
0
0.5
1
1.5
2
2.5
3
2
1
-50
-25
0
25
50
75
100
125
Switch Current (A)
Temperature (ºC)
Temperature (ºC)
V
IN
Quiescent Current vs Temperature
1.3
V
IN
Current in Shutdown
vs Input Voltage
50
1.20
Shutdown Threshold
vs Temperature
V
IN
= 2V
Not Switching
1.2
40
Shutdown Threshold (V)
V
SHDN
= 0
V
IN
Current (mA)
1.1
V
IN
Current (
µ
A)
V
IN
= 16V
-40ºC
30
1.15
125ºC
20
1.10
1
V
IN
= 2V
0.9
1.05
10
0.8
-50
-25
0
25
50
75
100
125
0
0
5
10
15
20
1.00
-50
-25
0
25
50
75
100
125
Temperature (ºC)
Input Voltage (V)
Temperature (ºC)
4
KINGBOR [ KINGBOR TECHNOLOGY CO ]
