Datasheet

LT1129/LT1129-3.3/LT1129-5
4
112935ff
SYMBOL CONDITIONS MIN TYP MAX UNITS
Regulated Output Voltage
(Notes 4, 12)
LT1129-3.3 V
IN
= 3.8V, I
OUT
= 1mA, T
J
= 25°C
4.3V < V
IN
< 20V, 1mA < I
OUT
< 700mA
l
3.250
3.200
3.300
3.300
3.350
3.400
V
V
LT1129-5 V
IN
= 5.5V, I
OUT
= 1mA, T
J
= 25°C
6V < V
IN
< 20V, 1mA < I
OUT
< 700mA
l
4.925
4.850
5.000
5.000
5.075
5.150
V
V
LT1129 (Note 5) V
IN
= 4.3V, I
OUT
= 1mA, T
J
= 25°C
4.8V < V
IN
< 20V, 1mA < I
OUT
< 700mA
l
3.695
3.640
3.750
3.750
3.805
3.860
V
V
Line Regulation (Note 12)
LT1129-3.3 ΔV
IN
= 4.8V to 20V, I
OUT
= 1mA
l
1.5 10 mV
LT1129-5 ΔV
IN
= 5.5V to 20V, I
OUT
= 1mA
l
1.5 10 mV
LT1129 (Note 5) ΔV
IN
= 4.3V to 20V, I
OUT
= 1mA
l
1.5 10 mV
Load Regulation (Note 12)
LT1129-3.3 ΔI
LOAD
= 1mA to 700mA, T
J
= 25°C
ΔI
LOAD
= 1mA to 700mA
l
6
15
20
30
mV
mV
LT1129-5 ΔI
LOAD
= 1mA to 700mA, T
J
= 25°C
ΔI
LOAD
= 1mA to 700mA
l
6
20
20
30
mV
mV
LT1129 (Note 5) ΔI
LOAD
= 1mA to 700mA, T
J
= 25°C
ΔI
LOAD
= 1mA to 700mA
l
6
15
20
30
mV
mV
Dropout Voltage
(Note 6)
I
LOAD
= 10mA, T
J
= 25°C
I
LOAD
= 10mA
l
0.13 0.20
0.25
V
V
I
LOAD
= 100mA, T
J
= 25°C
I
LOAD
= 100mA
l
0.25 0.35
0.45
V
V
I
LOAD
= 500mA, T
J
= 25°C
I
LOAD
= 500mA
l
0.37 0.45
0.60
V
V
I
LOAD
= 700mA, T
J
= 25°C
I
LOAD
= 700mA
l
0.45 0.55
0.70
V
V
Ground Pin Current
(Note 7)
I
LOAD
= 0mA
l
50 70 μA
I
LOAD
= 10mA
l
310 450 μA
I
LOAD
= 100mA
l
2.0 3.5 mA
I
LOAD
= 300mA
l
10 20 mA
I
LOAD
= 500mA
l
25 45 mA
I
LOAD
= 700mA
l
50 90 mA
Adjust Pin Bias Current (Notes 5, 8) T
J
= 25°C 150 300 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.25
1.2
0.75
2.8 V
V
Shutdown Pin Current (Note 9) V
SHDN
= 0V
l
610 μA
Quiescent Current in Shutdown
(Note 10)
V
IN
= 6V, V
SHDN
= 0V
l
15 25 μA
ORDER INFORMATION
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1129CT-5 LT1129CT-5#TR LT1129CT-5 5-Lead Plastic TO-220 0°C to 125°C
LT1129IT-5 LT1129IT-5#TR LT1129IT-5 5-Lead Plastic TO-220 –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C.