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Texas Instruments TPS7B8633QKVURQ1R2 — Discrete Semiconductors
Texas Instruments

TI TPS7B8633QKVURQ1R2 LDO Regulator, 500 mA, 40 V, AEC-Q100

MPNTPS7B8633QKVURQ1R2
End of Life

Texas Instruments TPS7B8633QKVURQ1R2, Automotive AEC-Q100 LDO, Fixed 3.3 V output, 500 mA, 40 V input, PSRR 70 dB (1 kHz), 26 µA quiescent, TO-252-5 package, -40°C to 150°C junction temperature.

$2.76Ref. price · indicative, final on quote
TPS7B8633QKVURQ1R2 datasheet
PackagingTO-252-5, DPak (4 Leads + Tab), TO-252AD
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.
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Specifications

TPS7B8633QKVURQ1R2 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
Mounting typeSurface Mount
Voltage - input40V
Voltage dropout0.575V @ 500mA
Voltage - output (Min (Fixed))3.3V
Current - output500mA
Current - quiescent26 µA
Operating temperature-40°C ~ 150°C (TJ)
PSRR70dB (1kHz)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-252-5, DPak (4 Leads + Tab), TO-252AD
Control featuresEnable
Protection featuresOver Current, Over Temperature, Under Voltage Lockout (UVLO)
Number of regulators1
Output configurationPositive

Product details

What this LDO brings to an automotive rail

The Texas Instruments TPS7B8633QKVURQ1R2 is a single-output positive LDO regulator delivering a fixed 3.3 V at up to 500 mA from a 40 V maximum input. It is qualified to AEC-Q100 and rated for a junction temperature range of -40°C to 150°C, which covers under-hood and transmission environments. The 70 dB PSRR at 1 kHz keeps noise from the 40 V bus out of sensitive analog and digital loads, while the 26 µA quiescent current suits always-on modules in battery-backed systems.

Protection and control

Built-in protection includes over-current, over-temperature, and under-voltage lockout (UVLO). An Enable pin allows the regulator to be gated by a system supervisor or ignition signal. The fixed 3.3 V output eliminates the need for an external resistor divider.

Package and mounting

Supplied in a TO-252-5 (DPak) surface-mount package with four leads plus a tab. The tab is the main thermal path; PCB copper area under the tab determines the effective thermal resistance at the 150°C junction limit.

Lifecycle and sourcing

The TPS7B8633QKVURQ1R2 is listed as Active with no last-time-buy or end-of-life notice. It is an automotive-grade part released for production use.

Frequently asked questions

What protection features does TPS7B8633QKVURQ1R2 have?

It includes over-current, over-temperature, and under-voltage lockout (UVLO) protection, plus an Enable pin for external control.

Is TPS7B8633QKVURQ1R2 automotive qualified?

Yes, it is AEC-Q100 qualified, making it suitable for automotive applications including under-hood and transmission environments.

What is the closest functional equivalent to TPS7B8633QKVURQ1R2?

The TPS7A0218PYCHR is a lower-voltage (6 V input, 1.8 V output, 200 mA) LDO with 55 dB PSRR at 1 kHz, but it lacks the 40 V input and 500 mA capability of the TPS7B8633. For a true functional match, stay within the TPS7B86 family for the same input voltage and output current.