MIC2103 Datasheet, PDF (11/36 Pages) Micrel Semiconductor – 75V, Synchronous Buck Controllers featuring Adaptive On-Time Control

Micrel, Inc.
MIC2103/04
Typical Characteristics (Continued)
V_DD Voltage
vs. Temperature
6.0
5.5
5.0
4.5
4.0
3.5
I_DD = 10mA
I_DD = 40mA
3.0
2.5
2.0
1.5
1.0
V_IN = 48V
0.5
I_OUT = 0A
0.0
-50 -25
0
25
50 75 100 125
TEMPERATURE (°C)
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
-50
V_DD UVLO Threshold
vs. Temperature
Rising
Falling
V_IN =48V
I_OUT = 0A
-25
0
25 50 75 100 125
TEMPERATURE (°C)
EN Bias Current
vs. Temperature
100
80
60
40
20
0
-50
V_IN =48V
V_EN = 0V
-25 0 25 50 75 100 125
TEMPERATURE (°C)
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
-50
Enable Threshold
vs. Temperature
Rising
Falling
V_IN = 48V
-25
0
25
50 75 100 125
TEMPERATURE (°C)
PG Threshold/VREF Ratio vs.
T emperature
1.21
1.11
1.01
0.91
0.81
0.71
0.61
0.51
0.41
0.31
-50 -25
0
25
50 75 100 125
TEMPERATURE (C)
August 2012
11
M9999-080712-A