MIC2101 Datasheet, PDF (8/37 Pages) Micrel Semiconductor – 38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control

Micrel, Inc.
Typical Characteristics (Continued)
V_IN Operating Supply Current
vs. Input Voltage (MIC2102)
60
48
36
V_OUT = 3.3V
24
I_OUT = 0A
f_SW = 600kHz
12
0
4
9
14 19 24 29 34 39
INPUT VOLTAGE (V)
0.808
0.804
Feedback Voltage
vs. Input Voltage (MIC2102)
V_OUT = 3.3V
I_OUT = 0A
f_SW = 600kHz
0.800
0.796
0.792
4
9 14 19 24 29 34 39
INPUT VOLTAGE (V)
MIC2101/02
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
5
Output Regulation
vs. Input Voltage (MIC2102)
V_OUT = 3.3V
I_OUT = 0A to 12A
f_SW = 600kHz
10 15 20 25 30 35
INPUT VOLTAGE (V)
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
5
Output Regulation
vs. Input Voltage (MIC2102)
`
V_OUT = 1.2V
I_OUT = 0A to 12A
f_SW = 600kHz
10 15 20 25 30 35
INPUT VOLTAGE (V)
Feedback Voltage
0.808 ^{vs. Temperature (MIC2102)}
0.804
0.800
0.796
V_IN = 12V
V_OUT = 3.3V
I_OUT = 0A
0.792
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
V_IN Operating Supply Current
60
vs. Input Voltage (MIC2102)
48
36
24
12
0
5
V_OUT = 1.2V
I_OUT = 0A
f_SW = 600kHz
10
15
20
25
30
35
INPUT VOLTAGE (V)
Load Regulation
vs. Temperature (MIC2102)
0.4%
0.3%
0.2%
0.1%
V_IN = 12V
V_OUT = 3.3V
I_OUT = 0A to 12A
f_SW = 600kHz
0.0%
-0.1%
-0.2%
-0.3%
-50
-25
0
25 50 75
TEMPERATURE (°C)
100 125
V_IN Operating Supply Current
vs. Temperature (MIC2102)
50
40
30
20
10
0
-50
V_IN = 12V
V_OUT = 3.3V
I_OUT = 0A
f_SW = 600kHz
-25
0
25 50 75 100 125
TEMPERATURE (°C)
Line Regulation
vs. Temperature (MIC2102)
0.4%
0.3%
0.2%
V_IN = 5V to 38V
V_OUT = 3.3V
I_OUT = 0A
0.1%
0.0%
-0.1%
-0.2%
-0.3%
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
August 2012
8
M9999-080712-A