Datasheet

Micrel, Inc. MIC4680
March 2008 6
M9999-032808
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0 5 10 15 20 25 30 35
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
Saf
e
Operating Area
V
OUT
=5V
T
A
=60°C
Demonstration
board layout
Minimum
Current Limit
Note
Functional Characteristics
Frequency Foldback
The MIC4680 folds the switching frequency back during a
hard short-circuit condition to reduce the energy per cycle
and protect the device.