MIC2103 Datasheet, PDF (6/36 Pages) Micrel Semiconductor – 75V, Synchronous Buck Controllers featuring Adaptive On-Time Control

Micrel, Inc.
Typical Characteristics
V_IN Operating Supply Current
vs. Input Voltage (MIC2103)
2.00
1.60
1.20
0.80
0.40
V_OUT = 5V
0.00
I_OUT = 0A
10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE (V)
Output Regulation
vs. Input Voltage (MIC2103)
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
V_OUT = 5.0V
I_OUT = 0A to 10A
-1.0%
10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE (V)
MIC2103/04
Feedback Voltage
vs. Input Voltage (MIC2103)
0.808
0.804
0.800
0.796
V_OUT = 5.0V
I_OUT = 0A
0.792
10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE (V)
Output Voltage
vs. Input Voltage (MIC2103)
5.025
5.020
5.015
5.010
5.005
5.000
4.995
V_OUT = 5V
I_OUT = 0A
4.990
10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE (V)
V_IN Operating Supply Current
vs. Temperature (MIC2103)
2.00
1.60
1.20
0.80
0.40
0.00
-50
V_IN = 48V
V_OUT = 5.0V
I_OUT = 0A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature (MIC2103)
0.808
0.804
0.800
0.796
0.792
-50
V_IN = 48V
V_OUT = 5.0V
I_OUT = 0A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Load Regulation
vs. Temperature (MIC2103)
0.4%
0.3%
0.2%
0.1%
0.0%
-0.1%
-0.2%
-0.3%
-50
V_IN = 48V
V_OUT = 5.0V
I_OUT = 0A to 10A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Line Regulation
vs. Temperature (MIC2103)
0.8%
0.7%
0.6%
0.5%
0.4%
0.3%
0.2%
0.1%
0.0%
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
-0.6%
V_IN = 12V to 75V
V_OUT = 5.0V
I_OUT = 0A
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage
vs. Output Current (MIC2103)
0.808
0.804
0.800
0.796
V_IN = 48V
V_OUT = 5.0V
0.792
f_SW = 200kHz
0 1 2 3 4 5 6 7 8 9 10
OUTPUT CURRENT (A)
August 2012
6
M9999-080712-A