AIC1638
3-PIN ONE-CELL STEP-UP DC/DC CONVERTER
SPEC NO: DS-1638-00 03/01/00
"
TYPICAL PERFORMANCE CHARACTERISTICS
(CONTINUED)
AIC1638-33 Load Regulation (L=47µH, CD54)
3.4
3.3
3.2
90
85
80
AIC1638-33 Efficiency (L=47µH,CD54)
Output Voltage (V)
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
0
25
V
IN
=
1.5V
Efficiency (%)
V
IN
=
1.8V
V
IN
=
2.0V
75
70
65
60
55
50
V
IN
=2.0V
V
IN
=
1.2V
V
IN
=
0.9V
50
75
100
125
150
175
200
225
V
IN
=1.5V
V
IN
=0.9V
V
IN
=1.2V
V
IN
=1.8V
45
40
0
25
50
75
100
125
150
175
200
225
250
Output Current (mA)
Output Current (mA)
AIC1638-33 Start-up & Hold-on Voltage (L=100µH)
1.1
1.0
3.50
3.45
AIC1638-33 Output Voltage vs Temperature
Input Voltage (V)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
2
4
6
8
10
12
14
16
18
20
Output Voltage Vout (V)
0.9
Start up
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
-40
-20
0
20
40
No Load
Hold on
60
80
100
Output Current (mA)
Temperature (°C)
AIC1638-33 Switching Frequency vs Temperature
150
140
82
80
AIC1638-33 Maximum Duty Cycle vs Temperature
Switching Frequency (kHz)
130
120
110
100
90
80
70
60
50
-40
-20
0
20
40
60
80
100
Maximum Duty Cycle (%)
78
76
74
72
70
68
66
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (°C)
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
8
AIC [ ANALOG INTERGRATIONS CORPORATION ]
