MIC22700 Datasheet, PDF (4/21 Pages) Micrel Semiconductor – 1MHz, 7A Integrated Switch High Efficiency Synchronous Buck Regulator

Micrel, Inc.
Typical Characteristics
Shutdown Current
vs. Temperature
10
EN = 0V
V = 3.3V
8 ^IN
6
4
2
0
0.701
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature
0.700
0.699
0.698
0.697
V = 3.3V
0.696 ^IN
EN = V
IN
0.695
TEMPERATURE (°C)
Frequency
vs. Temperature
1020
1015
V_IN
EN
=
=
3.3V
V
IN
1010
1005
1000
995
990
985
980
TEMPERATURE (°C)
Quiescent Current
vs. Input Voltage
1200
EN > 1.34V
1100
V
FB
=
0.9V
No Switching
1000
900
800
700
6020.5 _{3 3.5 4 4.5 5 5.5}
INPUT VOLTAGE (V)
July 2009
Quiescent Current
vs. Temperature
900 _{EN > 1.34V}
890 _{V = 0.9V}
FB
880 _{V = 3.3V}
870
IN
No
Switching
860
850
840
830
820
810
800
TEMPERATURE (°C)
Enable Voltage
vs. Temperature
1.245
V = 3.3V
1.244 ^IN
1.243
1.242
1.241
1.24
1.239
1.238
1.237
1.236
1.235
TEMPERATURE (C)
Frequency
vs. Input Voltage
1040
EN = V
IN
1030
1020
1010
1000
990
9820.5 _{3 3.5 4 4.5 5 5.5}
INPUT VOLTAGE (V)
Shutdown Current
vs. Input Voltage
7.0
EN = 0V
6.5
6.0
5.5
5.0
4.5
4.20.5 _{3 3.5 4 4.5 5 5.5}
INPUT VOLTAGE (V)
4
MIC22700
Feedback Voltage
vs. Input Voltage
0.6990
EN = V
0.6989
IN
0.6988
V
IN
=
3.3V
0.6987 ^{AMB = 25°C}
0.6986
0.6985
0.6984
0.6983
0.6982
0.6981
0.69820.5 _{3 3.5 4 4.5 5 5.5}
INPUT VOLTAGE (V)
Enable Hysteresis
vs. Temperature
0.0100
V = 3.3V
0.0095 ^IN
0.0090
0.0085
0.0080
0.0075
0.0070
0.0065
0.0060
0.0055
0.0050
TEMPERATURE (°C)
P-Channel R
DSON
vs. Input Voltage
40
38
EN = V
IN
36
34
32
30
28
26
24
22
220.5 _{3 3.5 4 4.5 5 5.5}
INPUT VOLTAGE (V)
M9999-072209-B