MIC2193 Datasheet, PDF (5/10 Pages) Micrel Semiconductor – 400KHZ SO 8 SYNCHRONOUS BUCK CONTROL IC

MIC2193
Typical Characteristics
Quiescent Current
vs. Supply Voltage
6
5
4
3
2
1
00
5
10
15
SUPPLY VOLTAGE (V)
3.10
3.08
3.06
3.04
3.02
3.00
2.98
2.96
2.94
2.92
2.900
V_DD vs. Load
V_IN = 12V
V_IN = 5V
V_IN = 3.3V
0.2 0.4 0.6 0.8 1 1.2
V_DD LOAD CURRENT (mA)
Switching Frequency
vs. Input Voltage
2.5
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.00
5
10
15
INPUT VOLTAGE (V)
Current Limit Threshold
vs. Temperature
120
115
V_IN = 5V
110
105
100
95
90
85
8-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
April 2004
Quiescent Current
vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
V_IN = 5V
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
3.50 ^{VDD vs. Temperature}
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
V_IN = 5V
2.5-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
5
0
-5
-10
-15
V_IN = 5V
-2-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
OUTN Drive Impedance
vs. Input Voltage
14.0
12.0
10.0
8.0
6.0
Source (Ω)
4.0
2.0
Sink (Ω)
0.00 _{2 4 6 8 10 12 14}
INPUT VOLTAGE (V)
5
Micrel
3.15 ^{VDD vs. Input Voltage}
3.10
3.05
3.00
2.95
2.90
2.85
2.800
5
10
15
INPUT VOLTAGE (V)
1.300
1.290
Reference Voltage
vs. Temperature
V_IN = 5V
1.280
1.270
1.260
1.250
1.240
1.230
1.220
1.210
1.20-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Overcurrent Threshold
vs. Input Voltage
130
125
120
115
110
105
100
95
900 _{2 4 6 8 10 12 14}
INPUT VOLTAGE (V)
OUTN Drive Impedance vs.
Input Voltage
14
12
Sink (Ω)
10
8
6
4
Source (Ω)
2
00
5
10
15
INPUT VOLTAGE (V)
M9999-042704