AIC1638
3-PIN ONE-CELL STEP-UP DC/DC CONVERTER
SPEC NO: DS-1638-00 03/01/00
"
TYPICAL PERFORMANCE CHARACTERISTICS
Capacitor (C1) : 47
µ
F (Tantalum Type)
Diode
(D1) : 1N5819 Schottky Type
AIC1638-27 Load Regulation
(L=100µH CD54)
2.8
85
AIC1638-27 Efficiency (L=100µH CD54)
2.7
80
Output voltage (V)
V
IN
=1.2V
2.5
Efficiency (%)
2.6
V
IN
=1.5V
V
IN
=1.8V
V
IN
=2.0V
75
70
V
IN
=1.8V
V
IN
=2.0V
2.4
65
V
IN
=1.5V
V
IN
=0.9V
60
2.3
V
IN
=0.9V
2.2
0
55
20
40
60
80
100
120
140
160
180
0
20
40
60
V
IN
=1.2V
80
100
120
140
160
180
Output Current (mA)
Output current (mA)
AIC1638-27 Load Regulation (
L=47µH CD54)
2.8
AIC1638-27 Efficiency
85
80
(L=47µH CD54)
2.7
75
Output voltage (V)
2.6
Efficiency (%)
V
IN
=1.2V
2.5
V
IN
=1.5V
V
IN
=1.8V
V
IN
=2.0V
70
65
60
V
IN
=2.0V
V
IN
=1.8V
2.4
V
IN
=1.2V
V
IN
=0.9V
V
IN
=1.5V
55
V
IN
=0.9V
2.3
0
20
40
60
80
100
120
140
160
180
200
220
240
50
0
20
40
60
80
100
120
140
160
180
200
220 240
Output Current (mA)
Output current (mA)
AIC1638-27 Start-Up & Hold-ON Voltage (L=47µH)
1.0
0.9
0.8
1.0
0.9
AIC1638-27
Start-Up & Hold-ON Voltage
(L=100µH)
Start up
0.8
Start up
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
2
4
6
8
10
12
14
16
18
Input Voltage (V)
Input Voltage (V)
0.7
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
Hold on
Hold on
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
4
AIC [ ANALOG INTERGRATIONS CORPORATION ]
