MIC2101_13 Datasheet, PDF (6/36 Pages) Micrel Semiconductor – 38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control

Micrel, Inc.
Typical Characteristics
V_IN Operating Supply Current
vs. Input Voltage (MIC2101)
1.00
0.90
0.80
VOUT = 3.3V
IOUT = 0A
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
4
9 14 19 24 29 34
INPUT VOLTAGE (V)
1.0%
0.8%
0.6%
Output Regulation
vs. Input Voltage (MIC2101)
VOUT = 1.2V
IOUT = 0A to 12A
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
Output Voltage
vs. Input Voltage (MIC2101)
1.212
1.210
VOUT = 1.2V
IOUT = 0A
1.208
1.206
1.204
1.202
1.200
1.198
1.196
5 10 15 20 25 30 35
INPUT VOLTAGE (V)
MIC2101/02
Output Regulation
vs. Input Voltage (MIC2101)
1.0%
0.8%
0.6%
VOUT = 3.3V
IOUT = 0A to 12A
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
Feedback Voltage
vs. Input Voltage (MIC2101)
0.824
0.816
VOUT = 3.3V
IOUT = 0A
0.808
0.800
0.792
0.784
0.776
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
V_IN Operating Supply Current
vs. Input Voltage (MIC2101)
1.00
0.90
0.80
VOUT = 1.2V
IOUT = 0A
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
5
10
15
20
25
30
35
INPUT VOLTAGE (V)
3.333
3.316
Output Voltage
vs. Input Voltage (MIC2101)
VOUT = 3.3V
IOUT = 0A
3.300
3.283
3.267
3.250
3.234
3.217
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
V_IN Operating Supply Current
vs. Temperature (MIC2101)
1.00
0.90
0.80
0.70
VIN = 12V
VOUT = 3.3V
IOUT = 0A
0.60
0.50
0.40
0.30
0.20
0.10
0.00
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
0.808
0.804
Feedback Voltage
vs. Temperature (MIC2101)
VIN = 12V
VOUT = 3.3V
IOUT = 0A
0.800
0.796
0.792
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
November 13, 2013
6
Revision 2.0