MIC2296_10 Datasheet, PDF (4/12 Pages) Micrel Semiconductor – High Power Density 1.2A Boost Regulator

Micrel
Typical Characteristics
12V Output with L = 4.7µH
84
V_IN = 4.2V
82
80
V_IN = 3.6V
78
76
V_IN = 3.2V
74
72
0 50 100 150 200 250
OUTPUT CURRENT (mA)
Frequency
vs. Input Voltage
800
600
400
200
0
2.5
5
7.5
10
INPUT VOLTAGE (V)
12.2
12.15
12.1
12.05
12
11.95
11.9
11.85
11.80
Load Regulation
V
IN
=
3
.6V
25 50 75 100 125 150
LOAD (mA)
5V Output with L = 4.7µH
90
88
V_IN = 4.2V
86
84
82
80
78
76
V_IN = 3.2V
V_IN = 3.6V
74
72
70
0 200 400 600 800 1000
OUTPUT CURRENT (mA)
Max Duty Cycle
vs. Input Voltage
100
98
96
94
92
90
2.5
5
7.5
10
INPUT VOLTAGE (V)
Feedback Voltage
vs. Temperature
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
MIC2296
Switch Saturation Voltage
vs. Input Voltage
300
290
280
270
260
250
240
230
220
210
200
10
Input Voltage (V)
Current Limit
vs. Input Voltage
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
2.5
5
7.5
10
INPUT VOLTAGE (V)
FB Pin Current
vs. Temperature
700
600
500
400
300
200
100
0-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
January 2010
4
M9999-011310