MIC2601 Datasheet, PDF (4/13 Pages) Micrel Semiconductor – 1.2A, 1.2MHz/2MHz Wide Input Range Integrated Switch Boost Regulator

Micrel, Inc.
Typical Characteristics
Quiescent Current
vs. Input Voltage
7
6
5
4
3
2
1
0
0 246
No Switching FB Pin @ 2V
81 01 21 41 61 8
INPUT VOLTAGE (V)
Max Duty Cycle
vs. Temperature
100
98
96
94
92
90
88
86
84
82
EN = 20V
V_{IN = 20V}
80
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Switch Current Limit
vs. Input Voltage
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
46
EN = V_IN
81 01 21 41 61 82 0
INPUT VOLTAGE (V)
1.270
Feedback Voltage
vs. Temperature
1.265
1.260
1.255
1.250
1.245
V_{IN = 12V}
Load = 100mA
1.24-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
September 2009
Quiescent Current
vs. Temperature
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
No Switching FB Pin @ 2V
3.5
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Switch Saturation Voltage
2700
2430
2160
1890
vs. Input Voltage
–0.1A –0.2A –0.3A –0.4A
–0.5A –0.6A –0.7A –0.8A
–0.9A –1.0A –1.1A –1.2A
–1.3A –1.4A –1.5A –1.6A
–1.7A
1620
1350
1080
810
540
270
0
46
81 01 21 41 61 82 0
INPUT VOLTAGE (V)
Switch Current Limit
vs. Temperature
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
V_IN = 12V
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Enable Threshold ON
1.290
vs. Temperature
1.285
1.280
1.275
1.270
1.265
1.260
1.255
V_{IN = 12V}
1.25-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
4
MIC2601/2
Max Duty Cycle
vs. Input Voltage
91
90
89
88
87
86
8546
EN = V_IN
81 01 21 41 61 82 0
INPUT VOLTAGE (V)
Switch Saturation Voltage
vs. Switch Current
2700
–4V –5V –6V –7V –8V –9V
2430 –10V –12V –15V –20V
2160
1890
1620
1350
1080
810
540
270
0
SWITCH CURRENT (A)
V_SAT
vs. Temperature
2.0
1.5
I_{SW = Current Limit}
1.0 _{ISW = 850mA}
0.5
I_{SW = 1200mA}
I_{SW = 500mA}
-040 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Enable Current
vs. Temperature
25
24
23
22
21
20
19
18
17
EN = 0V
16
V_{IN = 12V}
1-540 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
M9999-090909-A