MIC2619 Datasheet, PDF (4/15 Pages) Micrel Semiconductor – 1.2MHz PWM Boost Converter with OVP

Micrel, Inc.
Typical Characteristics
Efficiency VOUT = 5V
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
VIN=3V
VIN=3.6V
V I N = 4.2V
L = 10µH
C = 1µF
50
100 150 200
LOAD CURRENT (mA)
70%
60%
50%
40%
30%
20%
10%
0%
0
Efficiency VOUT = 35V
V IN = 5V
V IN = 6.5V
L = 10µH
C = 1µF
4
8
12
16
LOAD CURRENT (mA)
Line Regulation (VOUT=12V)
12.20
12.16
12.12
12.08
12.04
12.00
11.96
11.92
11.88
11.84
11.80
3
IOU T = 40m A
L = 10µH
C = 1µF
3.5 4 4.5 5 5.5 6 6.5
INPUT VOLTAGE (V)
1100
1000
900
800
700
600
500
400
300
200
3
Switch Current Limit
vs. Input Voltage
VOUT = 12V
L = 10µH
C = 1µF
3.5 4 4.5 5 5.5 6 6.5
IN PU T VOLTAGE (V)
March 2010
Efficiency VOUT = 10V
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
VIN=3.3V
VIN=5V
L = 10µH
C = 1µF
20 40 60 80 100
LOAD CURRENT (mA)
Load Regulation (VOUT=10V)
10.10
10.08
10.06
10.04
10.02
10.00
9.98
9.96
9.94
9.92
9.90
0
VIN = 3.6V
L = 10µH
C = 1µF
10 20 30 40 50 60 70
LOAD CURRENT (mA)
Line Regulation (VOUT=35V)
35.5
35.4
35.3
35.2
35.1
35.0
34.9
34.8
34.7
34.6
34.5
4.5
IOUT = 10mA
L = 10µH
C = 1µF
4.9 5.3 5.7 6.1 6.5
INPUT VOLTAGE (V)
Switch Current Limit
vs. T emperature
900
800
700
600
500
400
300
200
VIN = 3.6V
VOUT = 12V
100
L = 10µH
C = 1µF
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
4
MIC2619
Efficiency VOUT = 12V
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
V I N = 3.3V
V I N = 5V
L = 10µH
C = 1µF
20
40
60
80
LOAD CURRENT (mA)
Load Regulation (VOUT=35V)
35.5
35.4
35.3
35.2
35.1
35.0
34.9
34.8
34.7
34.6
34.5
0
VIN = 5V
L = 10µH
C = 1µF
2 4 6 8 10 12
LOAD CURRENT (mA)
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
3
Frequency
vs. Input Voltage
V_OUT = 12V
L = 10µH
C = 1µF
I_LOAD = 40m A
3.5 4 4.5 5 5.5 6 6.5
INPUT VOLTAGE (V)
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
3.0
Quiescent Current
vs. Input Voltage
VFB = 3V
No Switching
3.5 4.0 4.5 5.0 5.5 6.0 6.5
INPUT VOLTAGE (V)
M9999-030410-A