14) Duty Cycle at VFM Mode vs. Temperature
80
75
70
65
60
55
50
-60
-40
-20
0
20
40
60
80
100
(°C)
Temperature Topt
15) Lx Transistor On Resistance vs. Temperature
VIN=3.0V
1
0.75
0.5
Nch Tr. On Resistance
Pch Tr. On Resistance
0.25
0
-60
-40
-20
0
20
40
60
80
100
(°C)
Temperature Topt
16) Limit Voltage vs. Temperature
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
-60
-40
-20
0
20
40
60
80
100
Temperature Topt (°C)
17) Load Transient Response
0.6
0.5
0.4
0.3
0.2
0.1
0
OUT
I
=100mA
IOUT=0A
-0.1
-0.2
-0.3
-4.00E-05 -2.00E-05 0.00E+00
2.00E-05
4.00E-05
6.00E-05
Time[sec]
8.00E-05
1.00E-04
1.20E-04
1.40E-04
R1230D181B VIN=5.0V PWM
Rev. 1.12
- 17 -