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Texas Instruments TPS71745DSET — Discrete Semiconductors
Texas Instruments

TPS71745DSET LDO Regulator, 4.5V Fixed Output, 150mA, 6-WSON

MPNTPS71745DSET
End of Life

Texas Instruments TPS71745DSET, linear voltage regulator, fixed 4.5V output, 150mA, positive, single regulator, 6-WFDFN package, surface mount, -40°C to 125°C.

$1.61Ref. price · indicative, final on quote
TPS71745DSET datasheet
Packaging6-WFDFN
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

TPS71745DSET Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Voltage - input6.5V
Voltage dropout0.3V @ 150mA
Voltage - output (Min (Fixed))4.5V
Current - output150mA
Current - supply100 µA
Current - quiescent80 µA
Operating temperature-40°C ~ 125°C
PSRR70dB ~ 45dB (100Hz ~ 1MHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case6-WFDFN
Control featuresEnable
Protection featuresOver Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Number of regulators1
Output configurationPositive

Product details

Fixed 4.5V rail for noise-sensitive loads

PSRR is specified at 70dB at 100Hz, rolling to 45dB at 1MHz. The operating temperature range of -40°C to 125°C qualifies it for industrial environments.

Protection and control features

This LDO packs a full protection suite: over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO). The enable pin allows the regulator to be gated by a system controller or power-good signal, which is useful in sequenced power-up schemes. Quiescent current is 80 µA typical, with a maximum supply current of 100 µA — low enough for battery-powered equipment that stays in active mode for extended periods.

Sourcing and lifecycle

It is ROHS3 compliant.

Frequently asked questions

Can TPS71745DSET replace TPS71735?

The TPS71735 is a 3.5V fixed output variant in the same family. The TPS71745DSET is pin-compatible and shares the same package, protection features, and PSRR profile — the only difference is the output voltage. If your design needs 4.5V instead of 3.5V, it is a drop-in swap. For a 3.5V rail, stick with the TPS71735.