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Analog Devices LT3082IST#PBF — Power Management (PMIC / Gate Driver)

LT3082IST#PBF Linear Regulator, 200mA Adjustable, SOT-223

MPNLT3082IST#PBF
End of Life

Linear Technology LT3082IST#PBF, positive adjustable linear regulator, 200 mA output, 40 V input max, 38.5 V output max, PSRR 90 dB ~ 20 dB (120 Hz ~ 1 MHz), SOT-223-3, -40°C to 125°C.

$5.43Ref. price · indicative, final on quote
Analog Devices LT3082IST#PBF datasheet (PDF)
PackagingTO-261-4, TO-261AA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LT3082IST#PBF specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input40V
Voltage dropout1.65V @ 200mA
Voltage - output38.5V
Voltage - output (Min (Fixed))0V
Output current200mA
Current - quiescent500 µA
Operating temperature-40°C ~ 125°C
PSRR90dB ~ 20dB (120Hz ~ 1MHz)
PackageTube
CaseTO-261-4, TO-261AA
Protection featuresOver Current, Over Temperature, Reverse Polarity, Short Circuit
Number of regulators1
Output configurationPositive

Product details

The LT3082IST#PBF is a single-channel positive adjustable linear regulator rated for 200 mA output and a 40 V maximum input. Output voltage adjusts from 0 V up to 38.5 V.

PSRR profile — where it cleans and where it doesn't

PSRR starts at 90 dB at 120 Hz and rolls off to 20 dB by 1 MHz. That 90 dB at line frequency knocks down the 120 Hz ripple from a full-wave rectifier.

Protection set covers field faults

Over-current, over-temperature, reverse polarity, and short-circuit protection are all built in. Reverse polarity protection saves a board when a field tech lands the supply backwards.

No last-time-buy notice is active.

Frequently asked questions

Is LT3082IST#PBF RoHS compliant?

Yes, it is ROHS3 compliant.

Is LT3082IST#PBF equivalent to LT3082?

The LT3082IST#PBF is the SOT-223 surface-mount variant of the LT3082. Check the suffix for package and temperature grade; the core regulator function is the same.

When sourcing LT3082IST#PBF, what is the closest functional second-source — ADP7105ARDZ-3.3?

The ADP7105ARDZ-3.3 is a 500 mA positive regulator with PSRR of 60 dB to 50 dB over 10 kHz to 100 kHz, but it is fixed at 3.3 V output and has a 20 V input limit. It is not a direct adjustable replacement for the LT3082IST#PBF's 0 V to 38.5 V range and 40 V input capability. For an adjustable second source, the ADM7151ARDZ-04-R7 (adjustable, 800 mA, 16 V input) is closer in function but lower in input voltage.