AIC1638
3-PIN ONE-CELL STEP-UP DC/DC CONVERTER
SPEC NO: DS-1638-00 03/01/00
"
TYPICAL PERFORMANCE CHARACTERISTICS
(CONTINUED)
AIC1638-30 Switching Frequency vs Temperature
160
AIC1638-30 Maximum Duty Cycle vs Temperature
82
Switching Frequency (kHz)
Maximum Duty Cycle (%)
140
120
100
80
60
40
20
0
-40
80
78
76
74
72
70
68
66
-40
-20
0
20
40
60
80
100
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
AIC1638-30 SW On Resistance vs Temperature
1.8
1.6
52
48
AIC1638-30 Supply Current vs Temperature
SW Turn On Resistance (Ω)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
Supply Current IDD1 (µA)
-20
0
20
40
60
80
100
44
40
36
32
28
24
20
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
AIC1638-33 Load Regulation (L=100µH, CD54)
3.4
3.3
3.2
90
AIC1638-33 Efficiency (L=100µH, CD54)
V
IN
=2.0V
85
80
Output Voltage (V)
Efficiency (%)
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
0
25
V
IN
=1.5V
V
IN
=1.8V
V
IN
=2.0V
75
70
65
60
V
IN
=1.2V
V
IN
=1.8V
V
IN
=1.2V
V
IN
=0.9V
0
25
50
75
100
V
IN
=1.5V
V
IN
=0.9V
50
75
100
125
150
175
200
55
50
125
150
175
200
Output Current (mA)
Output Current (mA)
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
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