MIC22205 Datasheet, PDF (7/29 Pages) Micrel Semiconductor – 2A, Integrated, Switch, High-Efficiency

Micrel, Inc.
Typical Characteristics (Continued)
VIN Operating Supply Current
vs. Temperature
14.0
12.0
10.0
V_IN =3.3V
V_OUT = 1.8V
I_OUT = 0A
SWITCHING
8.0
6.0
-50
-25 0 25 50 75 100 125
TEMPERATURE (°C)
0.724
0.716
0.708
Feedback Voltage
vs. Temperature
V_IN = 3.3V
V_OUT = 1.8V
I_OUT = 0A
0.700
0.692
0.684
0.676
-50
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
1100
1050
1000
950
V_IN = 3.3V
900
V_OUT = 1.8V
I_OUT = 0A
850
800
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
V_IN Shutdown Current
vs. Temperature
15
V_IN = 3.3V
12
I_OUT = 0A
V_EN/DLY = 0V
9
3.76
6
3
0
-50 -25
0
25 50 75 100 125
TEMPERATURE (°C)
Load Regulation
vs. Temperature
0.6%
0.4%
0.2%
V_IN = 3.3V
V_OUT = 1.8V
I_OUT = 0A to 2A
0.0%
-0.2%
-0.4%
-50
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Enable Threshold
vs. Temperature
1.28
1.26
Rising
1.24
1.22
1.20
V_IN = 3.3V
1.18
1.16
1.14
Falling
1.12
1.10
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
MIC22205
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
-50
VIN UVLO Threshold
vs. Temperature
Rising
Falling
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Line Regulation
vs. Temperature
0.2%
0.1%
V_IN = 2.9V to 5.5V
V_OUT = 1.8V
0.0%
-0.1%
-0.2%
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Current Limit
vs. Temperature
10
8
6
4
V_IN = 3.3V
2
V_OUT = 1.8V
0
-50 -25
0
25 50 75 100 125
TEMPERATURE (°C)
August 2011
7
M9999-082511-A