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Texas Instruments LM1117ILD-3.3/NOPB — Analog & Data Acquisition

Texas Instruments LM1117ILD-3.3/NOPB LDO Regulator

MPNLM1117ILD-3.3/NOPB
Obsolete

Texas Instruments LM1117-3.3 series, LM1117ILD-3.3/NOPB, LDO voltage regulator, fixed 3.3V output, 800mA, 75dB PSRR at 120Hz, -40°C~125°C, 8-WDFN Exposed Pad / 8-WSON (4x4), Surface Mount.

Texas Instruments LM1117ILD-3.3/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM1117ILD-3.3/NOPB specifications
ParameterValue
SeriesLM1117-3.3
Output typeFixed
MountingSurface Mount
Voltage - input15V
Voltage dropout1.2V @ 800mA
Voltage - output (Min (Fixed))3.3V
Output current800mA
Current - supply10 mA
Current - quiescent5 mA
Operating temperature-40°C~125°C
PSRR75dB (120Hz)
PackageTape & Reel (TR)
Case8-WDFN Exposed Pad
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Product details

Obsolete — sourcing the LM1117ILD-3.3/NOPB for your BOM

This is a single-output positive LDO regulator with a fixed 3.3 V output and an 800 mA current capability. The 1.2 V maximum dropout at full load means the input rail needs at least 4.5 V to maintain regulation — a 5 V bus with a 0.5 V margin is the typical upstream choice.

Industrial temperature grade and protection

On-chip protection includes over-current and over-temperature shutdown — the part folds back before the junction exceeds the safe operating area.

8-WSON package — footprint and thermal path

Frequently asked questions

What is the output current and voltage of the LM1117ILD-3.3/NOPB?

The LM1117ILD-3.3/NOPB delivers a fixed 3.3 V output at up to 800 mA continuous current. The maximum dropout voltage is 1.2 V at full load, so the input rail must stay above 4.5 V to maintain regulation.

What is the PSRR of the LM1117ILD-3.3/NOPB?

The LM1117ILD-3.3/NOPB provides 75 dB of power-supply rejection at 120 Hz. This makes it effective at filtering 100/120 Hz ripple from rectified mains, suitable for powering sensitive analog circuits in industrial power supplies.