MIC39150/39151
Micrel
6
FLAG VOLTAGE (V)
5
4
3
2
1
Error Flag
Pull-Up Resistor
ENABLE CURRENT
µA)
12
10
8
6
4
2
Enable Current
vs. Temperature
FLAG VOLTAGE (mV)
V
IN
= V
OUT
+ 1V
V
EN
= 2.4V
250
200
150
100
50
Flag-Low Voltage
vs. Temperature
FLAG-LOW
VOLTAGE
V
IN
= 5V
FLAG HIGH
(OK)
V
IN
= 2.25V
R
PULL-UP
= 22kΩ
FLAG LOW
(FAULT)
1
10 100 100010000
RESISTANCE (kΩ)
0
0.01 0.1
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
Functional Characteristics
Load Transient Response
OUTPUT VOLTAGE
(500mV/div.)
V
IN
= 3.3V
V
OUT
= 2.5V
C
OUT
= 10µF
OUTPUT VOLTAGE
(500mV/div.)
Load Transient Response
V
IN
= 3.3V
V
OUT
= 2.5V
C
OUT
= 47µF
LOAD CURRENT
(500mA/div.)
100mA
LOAD CURRENT
(500mA/div.)
1.5A
1.5A
10mA
TIME (250µs/div.)
TIME (250µs/div.)
Load Transient Response
OUTPUT VOLTAGE
(50mV/div.)
V
OUT
= 2.5V
C
OUT
= 10µF
I
LOAD
= 10mA
5V
INPUT VOLTAGE
(2V/div.)
3.3V
TIME (500µs/div.)
MIC39150/39151
6
May 2000
MICREL [ MICREL SEMICONDUCTOR ]
