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Texas Instruments TPS77733DR — Discrete Semiconductors
Texas Instruments

TPS77733DR 3.3V 750mA LDO Regulator, 60dB PSRR, 8-SOIC

MPNTPS77733DR
End of Life

Texas Instruments TPS77733DR, fixed-output positive LDO regulator, 3.3V, 750mA, 60dB PSRR (1kHz), 125µA quiescent current, 8-SOIC package, -40°C to 125°C.

$3.74Ref. price · indicative, final on quote
TPS77733DR datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
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

TPS77733DR Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Voltage - input10V
Voltage dropout0.43V @ 750mA
Voltage - output (Min (Fixed))3.3V
Current - output750mA
Current - quiescent125 µA
Operating temperature-40°C ~ 125°C
PSRR60dB (1kHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.154\", 3.90mm Width)
Control featuresEnable, Power Good, Reset
Protection featuresOver Current, Over Temperature, Reverse Polarity
Number of regulators1
Output configurationPositive

Product details

Industrial temperature grade and protection set

Rated across -40°C to 125°C, this part handles outdoor telecom cabinets, motor-drive auxiliaries, and under-hood automotive modules without derating concerns. The protection block includes over-current, over-temperature, and reverse polarity — three features that reduce external clamp diodes and supervisory circuitry on the board. Control features (Enable, Power Good, Reset) give the system designer sequenced-rail or fault-reporting hooks without extra glue logic.

Package and ordering variant

Supplied in an 8-SOIC (0.154", 3.90 mm width) surface-mount package. The same die is available in other package variants; verify the exact ordering code for your assembly line.

Lifecycle and sourcing posture

TI lists the TPS77733DR as Active and ROHS3 compliant. No NRND or EOL notice is in effect, so it remains eligible for new-design qualification and production BOM commitment.

Frequently asked questions

Is the TPS77733DR obsolete or still active?

The TPS77733DR is listed as Active by Texas Instruments with no NRND or EOL notice. It remains suitable for new designs and production BOMs.

What is the TPS77733DR's PSRR and why does it matter?

PSRR is 60 dB at 1 kHz. That means the regulator attenuates 1 kHz ripple on the input by a factor of 1000 — important when powering analog circuits like op-amps or ADCs that would otherwise couple supply noise into the signal path.

Is the TPS77733DR compatible with the TPS77733?

The TPS77733DR is the Tape & Reel / Cut Tape ordering variant of the TPS77733 base device. The silicon and electrical specs are identical; only the shipping medium differs. If your BOM calls for the tube-shipped TPS77733, verify the DR suffix matches your assembly feeder requirements.

What is the closest pin-compatible alternative to the TPS77733DR?

Within the same TI family, the TPS77701DR (adjustable output version) shares the same pinout and package, but requires external resistor dividers to set the output voltage. For a fixed-output drop-in, stick with the TPS77733DR or the TPS77718DR for a 1.8 V rail. No second-source manufacturer lists a direct pin-compatible alternate for this exact order code.