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Texas Instruments LM1117DTX-2.85/NOPB — Analog & Data Acquisition

LM1117DTX-2.85/NOPB LDO Regulator, 2.85V Fixed, 800mA

MPNLM1117DTX-2.85/NOPB
Obsolete

Texas Instruments LM1117DTX-2.85/NOPB, fixed-output LDO regulator, 2.85 V, 800 mA, PSRR 75 dB at 120 Hz, TO-252-3 (DPak) surface-mount package, 0°C to 125°C operating temperature.

Texas Instruments LM1117DTX-2.85/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM1117DTX-2.85/NOPB specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input15V
Voltage dropout1.2V @ 800mA
Voltage - output (Min (Fixed))2.85V
Output current800mA
Current - supply10 mA
Current - quiescent5 mA
Operating temperature0°C~125°C
PSRR75dB (120Hz)
PackageTape & Reel (TR)
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Product details

Fixed 2.85 V rail with 800 mA headroom

The LM1117DTX-2.85/NOPB is a single-output, fixed 2.85 V LDO regulator from Texas Instruments, rated for 800 mA continuous output current. It comes in a TO-252-3 (DPak) surface-mount package with an exposed tab for thermal dissipation.

Maximum dropout is 1.2 V at the full 800 mA load, so the input rail must stay above 4.05 V to maintain regulation. Quiescent current sits at 5 mA typical, with a 10 mA supply-current ceiling — not a low-Iq part for battery standby, but fine for always-on industrial or test equipment rails. Built-in over-current and over-temperature protection keep the die safe under a shorted output or a stalled fan load.

Frequently asked questions

Where can I buy LM1117DTX-2.85/NOPB available via RFQ confirmation?

No stock-holding claim is made here.

Is LM1117DTX-2.85/NOPB obsolete and what is its replacement?

Yes, Texas Instruments lists the LM1117DTX-2.85/NOPB as obsolete. No official replacement order code is provided. For new designs, consider a current-production fixed-output LDO from the LM1117 family with the same 2.85 V output and TO-252 package, verifying dropout and PSRR against your rail requirements.

What is the PSRR of the LM1117DTX-2.85/NOPB?

The PSRR is 75 dB at 120 Hz, which provides strong rejection of line-frequency ripple for sensitive analog supplies.