LT3082

3

3082f

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.

The LT3082E is tested and specified under pulse load conditions such

–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

reliability.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SET Pin Current

l

9.90

9.80

10

10

10.10

10.20

μA

μA

l

–2

–4

2

4

mV

mV

Load Regulation (Note 7)

l

–0.1

–0.5

–2

nA

mV

Line Regulation

0.03

0.003

0.2

0.010

nA/V

mV/V

Minimum Load Current (Note 3)

l

300

500

μA

Dropout Voltage (Note 4)

l

l

1.22

1.3

1.45

1.65

V

V

Current Limit

l

200

300

mA

Error Amplifier RMS Output Noise (Note 5)

33

Reference Current RMS Output Noise (Note 5)

10Hz ≤ f ≤ 100kHz

0.7

Ripple Rejection

f = 10kHz

f = 1MHz

90

75

20

dB

dB

dB

Thermal Regulation

10ms Pulse

0.003

%/W