MIC27600_11 Datasheet, PDF (7/28 Pages) Micrel Semiconductor – 36V, 7A Hyper Speed Control™ Synchronous DC-DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
V_DD UVLO Threshold
vs. Temperature
2.8
2.7
Rising
2.6
Falling
2.5
2.4
2.3
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
V_IN Operating Supply Current
vs. Temperature
20
16
12
8
4
0
-50
VIN = 28V
VOUT = 3.3V
VDD = 5V
I_OUT = 0A
SWITCHING
-20 10 40 70 100 130
TEMPERATURE (°C)
Current Limit
vs. Temperature
25
20
15
10
VIN = 28V
5 _{VOUT = 3.3V}
VDD = 5V
0
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
0.5%
0.4%
0.3%
Line Regulation
vs. Temperature
VIN = 5.5V to 36V
VOUT = 3.3V
VDD = 5V
0.2%
0.1%
0.0%
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
0.808
0.804
0.800
Feedback Voltage
vs. Temperature
VIN = 28V
VOUT = 3.3V
VDD = 5V
IOUT = 0A
0.796
0.792
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
400
VIN = 28V
VOUT = 3.3V
350
VDD = 5V
IOUT = 0A
300
250
200
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
MIC27600
V_IN Shutdown Current
vs. Temperature
20
16
12
8
VIN = 28V
4 ^{VDD = 5V}
IOUT = 0A
0
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
1.0%
0.8%
0.6%
Load Regulation
vs. Temperature
VIN = 28V
VOUT = 3.3V
VDD = 5V
IOUT = 0A to 7A
0.4%
0.2%
0.0%
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
EN Bias Current
vs. Temperature
100
80
60
40
20
0
-50
V_IN = 28V
V_OUT = 3.3V
VDD = 5V
V_EN = 0V
-20 10 40 70 100 130
TEMPERATURE (°C)
July 2011
7
M9999-070811