MIC2164 MICREL [Micrel Semiconductor], MIC2164 Datasheet - Page 5

• Manufacturer Part Number: MIC2164
• Description: Constant Frequency, Synchronous Buck Controllers Featuring Adaptive On-Time Control
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Typical Characteristics
September 2009
0.85
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
100
100
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
0.810
0.808
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
0.790
0
0
0
-40
Feedback Voltage vs. Load
12V to 1.5V Efficiency
12V to 3.3V Efficiency
-20
4
3
4
Feedback Voltage
vs. Temperature
0
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
MIC2164-2
TEMPERATURE (°C)
MIC2164
20
8
6
8
40
12
60
12
9
80
VIN=5V
VHSD=12V
VIN=5V
16
12
16
100
VIN=5V
VIN=5V
120
20
15
20
100
100
0.85
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
350
340
330
320
310
300
290
280
270
260
250
0
0
3
0
Switching Frequency vs. Load
12V to 1.5V Efficiency
12V to 3.3V Efficiency
3.5
4
2
4
Feedback Voltage
vs. Input Voltage
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
MIC2164-3
INPUT VOLTAGE (V)
MIC2164
8
4
4
8
MIC2164
5
12
4.5
12
6
VHSD=12V
VHSD=12V
VIN=5V
16
16
8
5
VIN=5V
VIN=5V
5.5
20
10
20
0.85
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
100
100
700
680
660
640
620
600
580
560
540
520
500
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
0
0
3
0
Switching Frequency vs. Load
12V to 1.5V Efficiency
12V to 3.3V Efficiency
3
2
8
3
Feedback Voltage
vs. HSD Voltage
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
MIC2164-2
MIC2164-3
HSD VOLTAGE (V)
MIC2164-2
13
6
4
6
18
M9999-090409-B
9
6
9
MIC2164/-2/-3
VHSD=12V
VIN=5V
VIN=5V
12
23
12
8
VIN=5V
VIN=5V
15
10
28
15