MIC2544/2548
Micrel
Typical Characteristics
Output On-Resistance
vs. Supply Voltage
100
ON-RESISTANCE (mΩ)
90
80
T
A
= 27°C
70
60
50
2.5
ON-RESISTANCE (mΩ)
120
SUPPLY CURRENT (mA)
Output On-Resistance
vs. Temperature
140
120
100
80
60
40
20
On-State Supply Current
vs. Supply Voltage
100
3.3V
80
2.7V
T
A
= 27°C
5.0V
60
3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
40
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
2.5
3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
On-State Supply Current
vs. Temperature
140
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
120
100
80
60
40
20
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
2.7V
5.0V
3.3V
0.4
Off-State Supply Current
vs. Temperature
0.10
SUPPLY CURRENT (µA)
R
L
= 44Ω
0.3
5.0V
3.3V
0.1
2.7V
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Off-State Supply Current
vs. Supply Voltage
T
A
= 27°C
0.2
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
2.5
3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
Enable Threshold Voltage
vs. Supply Voltage
2.0
ENABLE THRESHOLD (V)
ENABLE THRESHOLD (V)
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
2.5
3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
V
EN
FALLING
V
EN
RISING
T
A
= 27°C
2.0
Enable Threshold Voltage
vs. Temperature
7
OUTPUT RISE TIME (ms)
6
5
4
3
Rise Time
vs. Temperature
1.8
1.6
1.4
1.2
2.7V
3.3V
V
EN
RISING
V
EN
FALLING
5.0V
2
1
R
L
= 44Ω
1.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Output Fall Time
vs. Temperature
2.5
OUTPUT FALL TIME (µs)
R
L
= 44Ω
2.0
1.5
1.0
0.5
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
2.7V
3.3V
5.0V
CURRENT LIMIT (mA)
2000
Current Limit
vs. R
SET
OUTPUT CURRENT (mA)
Output Current
vs. Output Voltage
2000
R
SET
= 150
1500
V
IN
= 5V
1000
R
SET
= 470
500
R
SET
= 2.3k
0
0
1
2
3
4
5
OUTPUT VOLTAGE (V)
6
V
IN
= 5V
1500
1000
500
I
SHORT
0
100
I
SET
I
TH
1000
R
SET
(Ω)
5000
MIC2544/2548
6
June 2000
MICREL [ MICREL SEMICONDUCTOR ]
