10) Soft-start Time vs. Temperature
R1221N33AB
L=27uH
VIN=4.5V
L=27uH
VIN=3.7V
R1221N25XA
12
10
8
10
8
6
4
6
2
4
0
2
-50
0
50
100
-50
0
50
100
°C)
Temperature Topt(
Temperature Topt
(°C)
11) Delay Time for Latch-type Protection vs. Temperature
VIN=4.5V
R1221N33AB
R1221N25XA
VIN=3.7V
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
0
50
100
-50
0
50
100
(°C)
Temperature Topt
Temperature Topt
(°C)
12) Delay Time for Reset-type Protection vs. Temperature
VIN=4.5V
VIN=4.5V
R1221N33AH
R1221N33AG
5
5
4
3
2
1
0
4
3
2
1
0
-50
0
50
100
-50
0
50
100
(°C)
Temperature Topt
(°C)
Temperature Topt
12345
Rev. 1.11
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