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Analog Devices LT1965IT#PBF — Analog & Data Acquisition

LT1965IT#PBF LDO Regulator, 1.1A, Adjustable, TO-220-5

MPNLT1965IT#PBF
End of Life

Analog Devices LT1965IT#PBF, positive adjustable LDO regulator, 1.1 A output, 1.2 V to 19.5 V output range, 20 V input max, 75 dB PSRR at 120 Hz, enable control, over-current/over-temperature/reverse-polarity protection, -40°C to 125°C, through-hole TO-220-5 package.

$7.49Ref. price · indicative, final on quote
PackagingTO-220-5
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LT1965IT#PBF specifications
ParameterValue
Output typeAdjustable
MountingThrough Hole
Voltage - input20V
Voltage dropout0.49V @ 1.1A
Voltage - output19.5V
Voltage - output (Min (Fixed))1.2V
Output current1.1A
Current - supply40 mA
Current - quiescent1.1 mA
Operating temperature-40°C ~ 125°C
PSRR75dB (120Hz)
PackageTube
CaseTO-220-5
Control featuresEnable
Protection featuresOver Current, Over Temperature, Reverse Polarity
Number of regulators1
Output configurationPositive

Product details

The Analog Devices LT1965IT#PBF is a positive adjustable low-dropout linear regulator rated for 1.1 A output current. It takes an unregulated input up to 20 V and delivers an adjustable output from 1.2 V to 19.5 V set by two external resistors.

Maximum dropout is 0.49 V at the full 1.1 A load.

Through-hole TO-220-5 — rework and thermal handling

The TO-220-5 package is a through-hole part with a metal tab. Through-hole leads survive multiple rework cycles — lift the part, not the pad — and the five-pin layout is wide enough to probe with a scope clip without shorting adjacent pins.

It is ROHS3 compliant (lead-free). If you are cross-referencing against an older LT1965IT (non-#PBF suffix), the #PBF variant is the lead-free, ROHS3-compliant version — electrically identical, same package, same temp range.

Frequently asked questions

How does the LT1965IT#PBF compare to the LT1963AET#PBF?

The LT1963AET#PBF delivers 1.5 A output vs 1.1 A here, but its PSRR is 63 dB at 120 Hz — 12 dB lower than the LT1965IT#PBF's 75 dB. Both share the same 20 V input max, enable control, protection set, and TO-220 package footprint. Choose the LT1965IT#PBF when the analog rail needs better ripple rejection; pick the LT1963AET#PBF when the load current exceeds 1.1 A.

Is the LT1965IT#PBF a direct replacement for the LT1965IT?

Yes. The #PBF suffix indicates lead-free, ROHS3-compliant plating. The electrical specs — output current, dropout, PSRR, enable, protection, temperature range — are identical to the non-#PBF version. Same TO-220-5 package, same pinout.