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Texas Instruments LP38691DT-2.5 — Discrete Semiconductors
Texas Instruments

LP38691DT-2.5 LDO Regulator, 2.5V Fixed Output, 500mA

MPNLP38691DT-2.5
End of Life

Texas Instruments LP38691DT-2.5, fixed-output 2.5V LDO, 500mA, 0.725V max dropout at full load, 100µA quiescent current, 55dB PSRR at 120Hz, enable pin, over-temperature protection, -40°C to 125°C junction temperature, TO-252-3 (DPak) package.

$0.79Ref. price · indicative, final on quote
LP38691DT-2.5 datasheet
PackagingTO-252-3, DPak (2 Leads + Tab), SC-63
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

LP38691DT-2.5 Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Voltage - input10V
Voltage dropout0.725V @ 500mA
Voltage - output (Min (Fixed))2.5V
Current - output500mA
Current - quiescent100 µA
Operating temperature-40°C ~ 125°C (TJ)
PSRR55dB (120Hz)
PackageBulk
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Control featuresEnable
Protection featuresOver Temperature
Number of regulators1
Output configurationPositive

Product details

Dropout and quiescent — the two numbers that decide the rail

Maximum dropout is 0.725 V at 500 mA output. Quiescent current is 100 µA. PSRR is 55 dB at 120 Hz.

Package and mounting — TO-252 with tab

The TO-252-3 (DPak) surface-mount package has two leads plus a tab that is the thermal path. The tab is electrically connected to the output pin.

Lifecycle and sourcing

The LP38691DT-2.5 carries an active lifecycle status, so there is no last-time-buy clock running. It is RoHS non-compliant per the listing — verify your assembly line's exemption allowance if you are building for a restricted-material jurisdiction.

Frequently asked questions

What is LP38691DT-2.5's PSRR?

PSRR is 55 dB at 120 Hz — that attenuates 120 Hz ripple from a full-wave rectifier by about 560 times. It is adequate for cleaning a switching preregulator's output for general analog loads, but not for precision reference rails.