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Texas Instruments LMS8117AMP-3.3/NOPB — Discrete Semiconductors
Texas Instruments

LMS8117AMP-3.3/NOPB 3.3V Fixed Output LDO, 1A, SOT-223

MPNLMS8117AMP-3.3/NOPB
End of Life

Texas Instruments LMS8117AMP-3.3/NOPB, positive fixed-output LDO regulator, 3.3V, 1A, PSRR 60~75 dB (120Hz), dropout 1.25V max at 1A, SOT-223 package, 0°C to 125°C operating temperature.

$1.39Ref. price · indicative, final on quote
LMS8117AMP-3.3/NOPB datasheet
PackagingTO-261-4, TO-261AA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LMS8117AMP-3.3/NOPB Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Voltage - input15V
Voltage dropout1.25V @ 1A
Voltage - output (Min (Fixed))3.3V
Current - output1A
Current - supply10 mA
Current - quiescent5 mA
Operating temperature0°C ~ 125°C
PSRR60 ~ 75 dB (120Hz)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-261-4, TO-261AA
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Product details

3.3 V fixed LDO for 1 A rails

The Texas Instruments LMS8117AMP-3.3/NOPB is a single-output, positive fixed LDO regulator delivering 3.3 V at up to 1 A. It comes in a surface-mount SOT-223 package and operates over 0°C to 125°C, making it a fit for commercial and industrial equipment that does not require cold-start below freezing. The fixed output eliminates the feedback divider, saving two resistors and a node on the board.

Dropout and PSRR — what they mean for the rail

Maximum dropout is 1.25 V at the full 1 A load. PSRR runs 60 to 75 dB at 120 Hz.

Protection and quiescent draw

On-chip over-current and over-temperature protection are included. Quiescent current is 5 mA typical, with a maximum supply current of 10 mA.

Sourcing and lifecycle

Product status is Active with ROHS3 compliance. No last-time-buy or obsolescence risk is associated with this part today.

Frequently asked questions

Can LMS8117AMP-3.3/NOPB replace LM1117?

Both are 1 A fixed-output LDOs in SOT-223, but the LM1117 family has a lower dropout (1.2 V typical at 1 A) and a wider temperature range option. Check the specific LM1117 variant's pinout and thermal performance for your board — the LMS8117AMP-3.3/NOPB is a functional alternative in many 3.3 V fixed-output designs, but verify dropout headroom and operating temperature range for your application.