Datasheet
LT3055
9
3055f
For more information www.linear.com/LT3055
SHDN Transient Response
C
REF/BYP
= 0
SHDN Transient Response
C
REF/BYP
= 10nF
Precision Current Limit,
R
IMAX
= 1.5k
Precision Current Limit,
R
IMAX
= 604Ω I
OUT
/I
MON
Ratio, I
OUT
= 500mA I
OUT
/I
MON
Ratio, I
OUT
= 500mA
I
OUT
/I
MON
Current Ratio I
OUT
/I
MON
Current Ratio
Minimum Output Current
Threshold, R
IMIN
= 1.2M
TYPICAL PERFORMANCE CHARACTERISTICS
T
J
= 25°C, unless otherwise noted.
OUT
5V/DIV
I
L
=500mA
REF/BYP
500mV/DIV
SHDN
2V/DIV
2ms/DIV
3055 G37
OUT
5V/DIV
I
L
= 500mA
REF/BYP
500mV/DIV
SHDN
2V/DIV
2ms/DIV
3055 G38
TEMPERATURE (°C)
–75
CURRENT LIMIT FAULT THRESHOLD (mA)
204
212
220
125
3055 G39
196
188
200
208
216
192
184
180
–25
25
75
–50 150
0
50
100
175
V
OUT(NOMINAL)
= 5V
V
IN
= 10V
V
IN
= 5.6V
V
IMON
(V)
0
I
OUT
/I
MON
CURRENT RATIO (mA/mA)
510
530
550
4
3055 G41
490
470
500
520
540
480
460
450
1
2
3
5
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
T
J
= –55°C
V
OUT
= 5V
V
IN
= 5.6V
V
IMON
(V)
0
I
OUT
/I
MON
CURRENT RATIO (mA/mA)
510
530
550
4
3055 G41
490
470
500
520
540
480
460
450
1
2
3
5
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
T
J
= –55°C
V
OUT
= 5V
V
IN
= 7V
I
OUT
(mA)
0
IOUT/IMON CURRENT RATIO (mA/mA)
510
530
550
400
3055 G43
490
470
500
520
540
480
460
450
100
200
300
50 450
150
250
350
500
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
T
J
= –55°C
V
OUT
= 5V
V
IN
= 5.6V
V
IMON
= 3.5V
I
OUT
(mA)
0
IOUT/IMON CURRENT RATIO (mA/mA)
510
530
550
400
3055 G44
490
470
500
520
540
480
460
450
100
200
300
50 450
150
250
350
500
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
T
J
= –55°C
V
OUT
= 5V
V
IMON
= 3.5V
I
OUT
= 10mA at V
IN
= 15V
I
OUT
= 250mA at V
IN
= 9V
I
OUT
= 500mA at V
IN
= 7V
TEMPERATURE (°C)
–75
MINIMUM OUTPUT CURRENT THRESHOLD (mA)
1.02
1.06
1.10
125
3055 G45
0.98
0.94
1.00
1.04
1.08
0.96
0.92
0.90
–25
25
75
–50 150
0
50
100
175
I
MIN
RISING THRESHOLD
I
MIN
FALLING THRESHOLD
TEMPERATURE (°C)
–75
CURRENT LIMIT FAULT THRESHOLD (mA)
510
530
550
125
3055 G40
490
470
500
520
540
480
460
450
–25
25
75
–50 150
0
50
100
175
V
OUT(NOMINAL)
= 5V
V
IN
= 7V
V
IN
= 5.6V