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MIC22400_10 Datasheet, PDF (5/28 Pages) Micrel Semiconductor – 4A Integrated Switch Synchronous Buck Regulator with Frequency Programmable up to 4MHz
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Micrel, Inc.
Typical Characteristics
Shutdown Current
vs. Input Voltage
10
8
6
TA=25°C
4
2
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Quiescent Current
vs. Temperature
2.0
1.6
1.2
0.8
0.4
No Switching
FB = 0.9V
VIN = 3.3V
0
TEMPERATURE (°C)
Enable Voltage
vs. Temperature
1.30
1.26
1.22
1.18
1.14
1.10
VIN = 3.3V
TEMPERATURE (°C)
P-Channel RDS ON
vs. Temperature
65
63
61
59
57
55
TEMPERATURE (°C)
December 2010
Shutdown Current
vs. Temperature
10
8
6
4
2
0
0.710
VIN = 3.3V
TEMPERATURE (°C)
Reference Voltage
vs. Input Voltage
0.705
0.700
0.695
TA=25°C
0.690
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Enable Hysterisis
vs. Temperature
8
7
6
5
4
3
2
1
VIN = 3.3V
0
TEMPERATURE (°C)
N-Channel RDS ON
vs. Temperature
40
38
36
34
32
30
TEMPERATURE (°C)
5
MIC22400
Quiescent Current
vs. Input Voltage
2.0
1.6
1.2
0.8
0.4
20.5
No Switching
FB = 0.9V
25°C
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
0.710
Reference Voltage
vs. Temperature
0.705
0.700
0.695
0.690
1060
1040
1020
1000
980
960
940
920
900
VIN = 3.3V
TEMPERATURE (°C)
Frequency
vs. Temperature
VIN = 3.3V
CF = 390pF
TEMPERATURE (°C)
M9999-120310-F
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