Datasheet

LTM2881
8
2881fg
For more information www.linear.com/LTM2881
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, LTM2881-3 V
CC
= 3.3V, LTM2881-5
V
CC
= 5.0V, V
L
= 3.3V unless otherwise noted.
V
CC2
vs Load Current
V
CC
Supply Current vs Temperature
at I
LOAD
= 100mA on V
CC2
V
CC2
Surplus Current
vs Temperature
V
CC2
LOAD CURRENT (mA)
VOLTAGE (V)
6
4
5
3
2
2881 G12
18016010 20 40 60 80 100 120 140
LTM2881-5
LTM2881-3
I
CC2
OUTPUT CURRENT (mA)
0
10
EFFICIENCY (%)
60
50
40
30
20
70
20050 100
2881 G13
150
LTM2881-5
LTM2881-3
100µs/DIV
2881 G14
V
CC2
100mV/DIV
I
LOAD
50mA/DIV
200µs/DIV
2881 G15
10mV/DIV
V
CC2
Power Efficiency V
CC2
Load Step (100mA) V
CC2
Noise
TEMPERATURE (°C)
I
CC
CURRENT (mA)
350
250
300
200
150
100
50
0
2881 G10
125100755025–25 0–50
LTM2881-3, V
CC
= 3.3V
LTM2881-5, V
CC
= 5V
TEMPERATURE (°C)
SURPLUS CURRENT (mA)
250
200
150
100
50
0
2881 G11
125100755025–25 0–50
LTM2881-5 (RS485 60mA)
LTM2881-3 (RS485 60mA)
LTM2881-3 (RS485 90mA)
LTM2881-5 (RS485 90mA)