SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Typical Performance Characteristics General conditions for all curves
EFFICIENCY vs. OUTPUT CURRENT
EFFICIENCY vs. OUTPUT CURRENT
ILC6391CP-30
ILC6391CP-50
100
80
100
80
VIN = 1.8V
VIN = 1.5V
VIN = 3.0V
VIN = 1.5V
VIN = 2.0V
60
40
60
40
VIN = 1.0V
VIN = 1.2V
L = 22µH (CD105)
L = 22µH (CD105)
20
0
20
0
RB = 300
RB = 300
CB = 0.1µF
CB = 0.1µF
0
100
200
300
400
500
0
200
400
600
800
500
800
OUTPUT CURRENT IOUT (mA)
OUTPUT CURRENT IOUT (mA)
OUTPUT VOLTAGE vs. OUTPUT CURRENT
OUTPUT VOLTAGE vs. OUTPUT CURRENT
ILC6391CP-50
ILC6391CP-30
4.0
3.5
7.0
6.0
VIN = 1.8V
3.0
2.5
2.0
5.0
VIN = 3.0V
VIN = 2.0V
4.0
3.0
VIN = 1.5V
VIN = 1.5V
VIN = 1.2V
VIN = 1.0V
VIN = 1.2V
1.5
1.0
0.5
2.0
1.0
0
L = 22µH (CD105)
L = 22µH (CD54)
RB = 300
CB = 0
RB = 500
CB = 0
0
20
40
60
80
100
0
100
200
300
400
OUTPUT CURRENT IOUT (mA)
OUTPUT CURRENT IOUT (mA)
OUTPUT VOLTAGE vs. OUTPUT CURRENT
ILC6391CP-50
OUTPUT VOLTAGE vs. OUTPUT CURRENT
ILC6391CP-30
6
5
4.0
3.5
VIN = 1.8V
VIN = 3.0V
3.0
2.5
2.0
4
3
VIN = 2.0V
VIN = 1.2V
VIN = 1.5V
VIN = 1.0V
VIN = 1.5V
2
1.5
1.0
0.5
L = 22µH (CD105)
L = 22µH (CD105)
1
0
RB = 300
RB = 300
CB = 0.1µF
CB = 0.1µF
0
200
400
600
0
20
40
60
80
100
OUTPUT CURRENT IOUT (mA)
OUTPUT CURRENT IOUT (mA)
RIPPLE VOLTAGE vs. OUTPUT CURRENT
RIPPLE VOLTAGE vs. OUTPUT CURRENT
ILC6391CP-30
ILC6391CP-50
400
300
200
500
400
L = 22µF (CD105)
L = 22µF (CD54)
RB = 300
CB = 0
RB = 500
CB = 0
300
200
VIN = 1.8V
VIN = 3.0V
VIN = 1.5V
VIN = 2.0V
100
0
VIN = 1.2V
100
0
VIN = 1.5V
0
100
200
300
400
500
0
100
200
300
400
500
OUTPUT CURRENT IOUT (mA)
OUTPUT CURRENT IOUT (mA)
Impala Linear Corporation
ILC6390 1.1
www.impalalinear.com
(408) 574-3939
Feb 2001
8
IMPALA [ Impala Linear Corporation ]
