AIC1641 Datasheet, PDF (4/12 Pages) List of Unclassifed Manufacturers – LOW VOLTAGE STEP-UP DC/DC CONVERTER

AIC1641
LOW VOLTAGE STEP-UP DC/DC CONVERTER
SPEC NO: DS-1641-00 05/04/00
" ^{ELECTRICAL CHARACTERISTICS (Continued)}
PARAMETER
Chip Enable Pin Input
Low Voltage
CE Pin Input Current
Efficiency
TEST CONDITIONS
V_IN=V_OUT x 0.95
V_CEL : 2.5V→0V
Judge the stop at EXT pin
Same as I_DD1, V_CE=V_OUT x 0.95
SYMBOL _MIN.
V_CEL
η
TYP.
80
MAX.
1.1
1.2
1.3
2.0
0.5
UNIT
V
µA
%
" ^{TYPICAL PERFORMANCE CHARACTERISTICS}
Inductor (L1) : 33µH (Pin Type)
Capacitor (C1) : 47µF (Tantalum Type)
Diode (D1) : 1N5819 Schottky Type
Transistor (Q1) : 2SD1803
2.80
2.75
2.70
2.65
2.60
2.55
2.50
2.45
2.40
0
AIC1641-27 Loading Regulation (L=33uH)
Vin=2.0V
Vin=1.5V
Vin=1.2V
Vin=1.8V
Vin=0.9V
50 100 150 200 250 300 350 400 450 500
Output Current (mA)
AIC1641-27 Efficiency (L=33uH)
90
85
80
Vin=2.0V
75
70
Vin=1.8V
65
60 _Vin=0.9V
55
Vin=1.5V
Vin=1.2V
50
0
50 100 150 200 250 300 350 400 450 500
Output Current (mA)
AIC1641-30 Load Regulation (L=33uH)
3.1
3.0
Vin=2.0V
2.9
2.8
Vin=1.5V ^Vin=1.8V
Vin=1.2V
2.7
Vin=0.9V
2.6
2.5
2.4
0
50
100 150 200 250 300 350 400 450
Output Current (mA)
AIC1641-30 Efficiency (L=33uH)
90
85
Vin=2.0V
80
75
Vin=1.8V
70
Vin=1.5V
65
Vin=0.9V
Vin=1.2V
60
0
50
100
150
200
250
300
350
400
450
Output Current (mA)
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: [phone] FAX:[phone]
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