Datasheet

MAX893L
1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
4 _______________________________________________________________________________________
-40 0 20 60 8040-20 100
OFF-SWITCH CURRENT
vs. TEMPERATURE
MAX893L toc04
TEMPERATURE (°C)
OFF-SWITCH CURRENT (nA)
1000
0.01
1
10
0.1
100
0.6
-40 -20 4020 100
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
0.8
MAX893L toc05
TEMPERATURE (°C)
NORMALIZED R
ON
06080
1.2
1.0
0.7
1.3
1.1
0.9
I
OUT
= 1/2 I
LIMIT
V
IN
= 5V
0
020 8060 140
I
OUT
/I
SET
RATIO
vs. I
LIMIT
400
MAX89L toc06
I
LIMIT
(%)
I
OUT
/I
SET
RATIO
40 100 120
1200
800
200
1400
1000
600
0
0.2
0.4
0.6
0.8
1.0
1.4
1.2
NORMALIZED OUTPUT CURRENT
vs. OUTPUT VOLTAGE
MAX893L toc07
OUTPUT VOLTAGE (V)
NORMALIZED OUTPUT CURRENT
01 234 56
I
LIMIT
= 1.2A
V
IN
= 5V
150
60
TURN-ON TIME
vs. TEMPERATURE
80
140
MAX893L toc08
TEMPERATURE (°C)
t
ON
(µs)
120
100
70
130
110
90
I
LOAD
= I
LIMIT
V
IN
= 3V
V
IN
= 5V
-40 -20 4020 10006080
I
LOAD
= I
LIMIT
V
IN
= 5V
V
IN
= 3V
0
TURN-OFF TIME
vs. TEMPERATURE
2
6
MAX893L toc09
TEMPERATURE (°C)
t
OFF
(µs)
4
1
5
3
-40 -20 4020 10006080
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
0
2
4
6
8
10
12
14
QUIESCENT CURRENT
vs. INPUT VOLTAGE
MAX89L toc01
INPUT VOLTAGE (V)
01 234 56
ON = GND
I
OUT
= 0
QUIESCENT CURRENT (µA)
-40 -20 4020 100
QUIESCENT CURRENT
vs. TEMPERATURE
9
MAX89L toc02
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
06080
13
11
8
14
12
10
V
IN
= 3V
V
IN
= 5V
10
0.001
-40 -20 2006040 80 100
OFF-SUPPLY CURRENT
vs. TEMPERATURE
0.01
MAX893L toc03
TEMPERATURE (°C)
OFF-SUPPLY CURRENT (nA)
0.1
1