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MIC24054 Datasheet, PDF (6/30 Pages) Micrel Semiconductor – 12V, 9A High-Efficiency Buck Regulator
◁
Micrel, Inc.
Typical Characteristics
VIN Operating Supply Current
vs. Input Voltage
1.0
0.8
0.6
0.4
0.2
0.0
4
VOUT = 1.8V
IOUT = 0A
SWITCHING
7
10
13
16
19
INPUT VOLTAGE (V)
VIN Shutdown Current
vs. Input Voltage
40
VEN = 0V
REN = OPEN
30
20
10
0
4
7
10
13
16
19
INPUT VOLTAGE (V)
MIC24054
VDD Output Voltage
vs. Input Voltage
10
8
6
4
2
VFB = 0.9V
IDD = 10mA
0
4
7
10
13
16
19
INPUT VOLTAGE (V)
Feedback Voltage
vs. Input Voltage
0.808
0.804
0.800
0.796
0.792
4
VOUT = 1.8V
IOUT = 2A
7
10
13
16
19
INPUT VOLTAGE (V)
Total Regulation
vs. Input Voltage
1.0%
0.5%
0.0%
-0.5%
-1.0%
4
VOUT = 1.8V
IOUT = 2A to 9A
7
10
13
16
19
INPUT VOLTAGE (V)
Output Current Limit
vs. Input Voltage
20
15
10
5
VOUT = 1.8V
0
4
7
10
13
16
19
INPUT VOLTAGE (V)
Switching Frequency
vs. Input Voltage
700
650
600
550
500
4
VOUT = 1.8V
IOUT = 2A
7
10
13
16
19
INPUT VOLTAGE (V)
Enable Input Current
vs. Input Voltage
16
12
8
4
VEN = VIN
0
4
7
10
13
16
19
INPUT VOLTAGE (V)
PG/VREF Ratio
vs. Input Voltage
100%
95%
90%
85%
80%
4
VFB = 0.8V
7
10
13
16
19
INPUT VOLTAGE (V)
October 2012
6
M9999-102512-A
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