LT1085CT-12 Linear Technology, LT1085CT-12 Datasheet - Page 3

• Manufacturer Part Number: LT1085CT-12
• Description: IC LDO REG 3A 12V TO-220-3
• Manufacturer: Linear Technology

Specifications of LT1085CT-12

• Regulator Topology: Positive Fixed
• Voltage - Output: 12V
• Voltage - Input: Up to 25V
• Voltage - Dropout (typical): 1.3V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Current - Limit (min): 3.2A
• Operating Temperature: 0°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
PARAMETER
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
CONDITIONS
LT1084-3.3
LT1085-3.3
LT1085-3.6
LT1085-3.6
LT1083/4/5-5
LT1083/4/5-12 I
LT1084-3.3
LT1085-3.3
LT1085-3.6
LT1083/4/5-5
LT1083/4/5-12 I
LT1084-3.3
LT1085-3.3
LT1085-3.6
LT1083/4/5-5
LT1083/4/5-12 V
LT1084/5-3.3
LT1085-3.6
LT1083/4/5-5
LT1083/4/5-12 ΔV
LT1083-5
LT1083-12
LT1084-3.3
LT1084-5
LT1084-12
LT1085-3.3/3.6 V
LT1085-5
LT1085-12
I
4.8V ≤ V
V
4.8V ≤ V
V
5V ≤ V
5V ≤ V
5V ≤ V
V
V
V
I
0 ≤ I
0 ≤ I
I
4.8V ≤ V
4.8V ≤ V
I
V
V
V
V
ΔV
ΔV
ΔV
V
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
= 5V, I
= 5V, I
= 4.75V, I
= 4.75V, I
= 4.75V, I
= 5V, 0 ≤ I
= 5V, 0 ≤ I
= 5.25V, 0 ≤ I
= 8V, 0 ≤ I
= 15V, 0 ≤ I
= 10V
= 17V
= 10V
= 17V
= 10V
= 17V
= 8V
= 8V
OUT
OUT
= 0mA, T
= 0mA, T
= 0mA, T
= 0mA, T
= 0mA, T
= 0mA, T
IN
IN
IN
= 33mV, I
= 36mV, I
= 50mV, I
= 120mV, I
IN
IN
≤ I
≤ I
IN
IN
≤ 15V, 0 ≤ I
≤ 15V, 0 ≤ I
≤ 15V, 0 ≤ I
OUT
OUT
≤ 15V, 0 ≤ I
≤ 15V, 0 ≤ I
≤ 15V, I
≤ 15V, I
FULLOAD
FULLOAD
OUT
OUT
OUT
J
J
J
J
J
J
OUT
OUT
OUT
= 0mA, T
= 0mA, T
= 25°C, V
= 25°C, V
= 25°C, V
= 25°C, 4.8V ≤ V
= 25°C, 6.5V ≤ V
= 25°C, 13.5V ≤ V
OUT
OUT
OUT
OUT
OUT
= 3A, T
= 2.5A, T
= 1.5A, T
OUT
≤ 5A, T
≤ 3A, T
≤ I
OUT
OUT
, 6.5V ≤ V
, 13.5V ≤ V
≤ I
A
OUT
OUT
OUT
= I
= I
= I
FULLLOAD,
≤ 3A, T
= 25°C.
= I
FULLLOAD,
OUT
OUT
= 0mA, T
= 0mA, T
J
J
FULL LOAD
FULL LOAD
FULL LOAD
J
FULL LOAD
IN
IN
IN
= 25°C (K Package Only)
= 25°C (K Package Only)
≤ I
≤ I
≤ 2.5A (Notes 3, 4, 9)
J
J
≥ 0°C
J
J
≤ I
≤ I
= 25°C
= 25°C
= 8V (K Package Only)
= 8V (K Package Only)
= 15V (K Package Only)
The
FULLOAD
FULLOAD
≥ 0°C
> 0°C
J
IN
FULLOAD
FULLOAD
IN
= 25°C
T
≤ 20V (Notes 4, 6, 7, 9)
IN
J
J
IN
J
T
●
≤ 25V (Notes 4, 6, 7, 9)
= 25°C
= 25°C
IN
J
= 25°C (Notes 2, 3, 4, 6)
(Notes 5, 6)
(Notes 5, 6)
(Notes 5, 6)
≤ 15V
≤ 20V (Notes 2, 3)
(Notes 5, 6)
denotes the specifications which apply over the full operating
= 25°C (Notes 2, 3, 4, 6)
, TJ ≥ 0°C (Notes 3, 4, 9)
≤ 25V (Notes 2, 3)
(Note 9)
(Notes 3, 4, 9)
(Notes 3, 4, 9)
LT1083/LT1084/LT1085 Fixed
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
11.880
11.760
3.270
3.235
3.270
3.235
3.564
3.500
3.528
3.528
3.350
3.450
3.528
4.950
4.900
MIN
8.0
8.0
5.5
5.5
5.5
3.2
3.2
3.2
12.000
12.000
3.300
3.300
3.300
3.300
3.600
5.000
5.000
TYP
0.5
1.0
0.5
1.0
0.5
1.0
0.5
1.0
1.0
2.0
1.3
1.3
1.3
1.3
9.5
9.5
6.5
6.5
6.5
4.0
4.0
4.0
12
10
24
3
7
3
7
3
7
5
12.120
12.240
3.330
3.365
3.330
3.365
3.636
3.672
3.672
3.672
3.672
3.672
3.672
5.050
5.100
MAX
1.5
1.5
1.5
1.5
10
10
25
25
15
20
15
20
15
20
20
35
36
72
6
6
6
6
6
6
UNITS
1083ffd
3
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
A
A