EXPOSED PAD (PIN 9) IS OUT, MUST BE SOLDERED TO OUT ON
THE PCB; SEE THE APPLICATIONS INFORMATION SECTION
ST PACKAGE
3-LEAD PLASTIC SOT-223
T
JMAX
= 125°C,
θ
JA
= 24°C/W,
θ
JC
= 15°C/W
TAB IS OUT, MUST BE SOLDERED TO OUT ON THE PCB;
SEE THE APPLICATIONS INFORMATION SECTION
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C,
θ
JA
= 57°C/W,
θ
JC
= 15°C/W
ORDER INFORMATION
LEAD FREE FINISH
LT3082EDD#PBF
LT3082IDD#PBF
LT3082EST#PBF
LT3082IST#PBF
LT3082MPST#PBF
LT3082ETS8#PBF
LT3082ITS8#PBF
LEAD BASED FINISH
LT3082EDD
LT3082IDD
LT3082EST
LT3082IST
LT3082MPST
LT3082ETS8
LT3082ITS8
TAPE AND REEL
LT3082EDD#TRPBF
LT3082IDD#TRPBF
LT3082EST#TRPBF
LT3082IST#TRPBF
LT3082MPST#TRPBF
LT3082ETS8#TRPBF
LT3082ITS8#TRPBF
TAPE AND REEL
LT3082EDD#TR
LT3082IDD#TR
LT3082EST#TR
LT3082IST#TR
LT3082MPST#TR
LT3082ETS8#TR
LT3082ITS8#TR
PART MARKING*
LDYT
LDYT
3082
3082
3082MP
LTDYV
LTDYV
PART MARKING*
LDYT
LDYT
3082
3082
3082MP
LTDYV
LTDYV
PACKAGE DESCRIPTION
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
3-Lead Plastic SOT-223
3-Lead Plastic SOT-223
3-Lead Plastic SOT-223
8-Lead Plastic SOT-23
8-Lead Plastic SOT-23
PACKAGE DESCRIPTION
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
3-Lead Plastic SOT-223
3-Lead Plastic SOT-223
3-Lead Plastic SOT-223
8-Lead Plastic SOT-23
8-Lead Plastic SOT-23
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified 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 specifications, go to:
http://www.linear.com/tapeandreel/
3082f
2
LT3082
ELECTRICAL CHARACTERISTICS
PARAMETER
SET Pin Current
Offset Voltage (V
OUT
– V
SET
)
Load Regulation (Note 7)
Line Regulation
Minimum Load Current (Note 3)
Dropout Voltage (Note 4)
Current Limit
Error Amplifier RMS Output Noise (Note 5)
Reference Current RMS Output Noise (Note 5)
Ripple Rejection
I
SET
V
OS
ΔI
SET
ΔV
OS
ΔI
SET
ΔV
OS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
J
= 25°C. (Note 2)
CONDITIONS
V
IN
= 2V, I
LOAD
= 1mA
2V ≤ V
IN
≤ 40V, 1mA ≤ I
LOAD
≤ 200mA
V
IN
= 2V, I
LOAD
= 1mA
V
IN
= 2V, I
LOAD
= 1mA
ΔI
LOAD
= 1mA to 200mA
ΔI
LOAD
= 1mA to 200mA
ΔV
IN
= 2V to 40V, I
LOAD
= 1mA
ΔV
IN
= 2V to 40V, I
LOAD
= 1mA
2V ≤ V
IN
≤ 40V
I
LOAD
= 10mA
I
LOAD
= 200mA
V
IN
= 5V, V
SET
= 0V, V
OUT
= –0.1V
,
I
LOAD
= 200mA, 10Hz ≤ f ≤ 100kHz, C
OUT
= 10μF
C
SET
= 0.1μF
10Hz ≤ f ≤ 100kHz
f = 120Hz, V
RIPPLE
= 0.5V
P-P
, I
LOAD
= 0.1A,
C
OUT
= 2.2μF C
SET
= 0.1μF
,
f = 10kHz
f = 1MHz
I
SET
10ms Pulse
l
l
l
l
l
l
l
MIN
9.90
9.80
–2
–4
TYP
10
10
MAX
10.10
10.20
2
4
UNITS
μA
μA
mV
mV
nA
mV
nA/V
mV/V
μA
V
V
mA
μV
RMS
nA
RMS
dB
dB
dB
%/W
–0.1
–0.5
0.03
0.003
300
1.22
1.3
200
300
33
0.7
90
75
20
0.003
–2
0.2
0.010
500
1.45
1.65
Thermal Regulation
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
Unless otherwise specified, all voltages are with respect to V
OUT
.
The LT3082E is tested and specified under pulse load conditions such
that T
J
≅
T
A
. The LT3082E is 100% tested at T
A
= 25°C. Performance at
–40°C and 125°C is assured by design, characterization, and correlation
with statistical process controls. The LT3082I is guaranteed to meet all
data sheet specifications over the full –40°C to 125°C operating junction
temperature range. The LT3082MP is 100% tested and guaranteed over
the –55°C to 125°C operating junction temperature range.
Note 3:
Minimum load current is equivalent to the quiescent current of
the part. Since all quiescent and drive current is delivered to the output
of the part, the minimum load current is the minimum current required to
maintain regulation.
Note 4:
For the LT3082, dropout is specified as the minimum input-to-
output voltage differential required supplying a given output current.
Note 5:
Adding a small capacitor across the reference current resistor
lowers output noise. Adding this capacitor bypasses the resistor shot
noise and reference current noise; output noise is then equal to error
amplifier noise (see the Applications Information section).
Note 6:
Diodes with series 1k resistors clamp the SET pin to the OUT pin.
These diodes and resistors only carry current under transient overloads.
Note 7:
Load regulation is Kelvin-sensed at the package.
Note 8:
This IC includes overtemperature protection that protects the
device during momentary overload conditions. Junction temperature
exceeds the maximum operating junction temperature when
overtemperature protection is active. Continuous operation above the
specified maximum operating junction temperature may impair device
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