MIC26600 Datasheet, PDF (8/28 Pages) Micrel Semiconductor – 7A Hyper Speed Control Synchronous DC-DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
Efficiency
vs. Output Current
95
90
12VIN
85
24VIN
80
75
70
65
60
VOUT = 1.2V
55
VDD = 5V
50
0 12 34 56 7
OUTPUT CURRENT (A)
0.808
Feedback Voltage
vs. Output Current
0.804
0.800
0.796
VIN = 12V
VOUT = 1.2V
VDD = 5V
0.792
01234567
OUTPUT CURRENT (A)
0.5%
0.4%
0.3%
Line Regulation
vs. Output Current
VIN = 6V to 26V
VOUT = 1.2V
VDD = 5V
0.2%
0.1%
0.0%
0 1 2 34 5 6 7
OUTPUT CURRENT (A)
Switching Frequency
vs. Output Current
390
360
330
300
270
240
VIN = 12V
VOUT = 1.2V
VDD = 5V
210
01234567
OUTPUT CURRENT (A)
Die Temperature* (VIN = 5V)
vs. Output Current
80
60
40
20
0
0
VIN = 5V
VOUT = 1.2V
VDD= 5V
12 34 56 7
OUTPUT CURRENT (A)
Die Temperature* (VIN = 12V)
vs. Output Current
80
60
40
20
VIN = 12V
VOUT = 1.2V
VDD= 5V
0
01 2345 67
OUTPUT CURRENT (A)
MIC26600
1.212
Output Voltage
vs. Output Current
1.209
1.206
1.203
VIN = 12V
VOUT = 1.2V
VDD = 5V
1.2
1.197
1.194
1.191
1.188
01234567
OUTPUT CURRENT (A)
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
0
Output Voltage (VIN = 5V)
vs. Output Current
VIN = 5V
VFB < 0.8V
VD D = 5V
TA
25ºC
85ºC
125ºC
12 34 56 78 9
OUTPUT CURRENT (A)
Die Temperature* (VIN = 24V)
vs. Output Current
80
60
40
20
VIN = 24V
VOUT = 1.2V
VDD = 5V
0
01 2345 67
OUTPUT CURRENT (A)
September 2010
8
M9999-091710-C