MIC49150
Micrel
Enable Threshold
vs. Temperature
1.6
ENABLE THRESHOLD (V)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
V
BIAS
= 5V
V
IN
= 2.5V
OFF
ON
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Functional Characteristics
Load Transient Response
OUTPUT VOLTAGE
50mV/div
OUTPUT VOLTAGE
20mV/div
Bias Voltage
Line Transient Response
BIAS VOLTAGE
2V/div
V
BIAS
= 3.3V
V
IN
= 1.8V
V
OUT
= 1V
C
OUT
= 1µF ceramic
V
BIAS
= 6.5V
V
BIAS
= 3.3V
OUTPUT CURRENT
1A/div
V
IN
= 1.8V
V
OUT
= 1V
C
OUT
= 1µF ceramic
I
OUT
= 1.5A
TIME (400µs/div.)
TIME (10µs/div.)
Input Voltage
Line Transient Response
OUTPUT VOLTAGE
20mV/div
V
IN
= 6.5V
INPUT VOLTAGE
2V/div
V
IN
= 1.8V
V
BIAS
= 3.3V
V
OUT
= 1V
C
OUT
= 1µF ceramic
I
OUT
= 1.5A
TIME (400µs/div.)
January 2002
7
MIC49150