AIC1573
n
TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
4
3
2
F
SW
=200KHz
Switching Frequency Drift (%)
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-40
-20
0
20
40
60
80
100
120
Fig. 7
6
5
Load Transient of Linear Controller
0.4
Temperature (
°
C)
Fig. 8 Temperature vs. Switching Frequency Drift
OCSET Current = 200
µ
A
0.3
0.2
OCSET Current Drift (%)
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-40
-20
0
20
40
60
80
100
120
VSEN2 Voltage Drift (%)
4
0.1
0.0
-
0
.
1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-40
VREG2=3.3V
-20
0
20
40
60
80
100
120
Fig. 9
0.4
0
.3
Temperature (
°
C)
Temperature vs. OCSET Current Drift
0.4
0.3
Fig. 10
Temperature (
°
C)
Temperature Drift of 9 Different Parts
PWM Output Voltage Drift (%)
0.1
0.0
-0
.
1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-
40
-
20
0
20
40
60
80
100
120
VSEN4 Voltage Drift (%)
0
.
2
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-40
DACOUT=1.6V
VREG4=1.8V
-20
Fig. 11
Temperature (
°
C)
Temperature Drift of 13 Different Parts
Fig. 12
Temperature (
°
C)
Temperature Drift of 9 Different Parts
0
20
40
60
80
100
120
7
AIC [ ANALOG INTERGRATIONS CORPORATION ]
