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Infineon Technologies TLD5085EJ — Analog & Data Acquisition
Infineon Technologies

TLD5085EJ LITIX™ DC-DC Buck Regulator, 370 kHz, 1.8 A

MPNTLD5085EJ
End of Life

Infineon LITIX™ TLD5085EJ, DC-DC Step-Down (Buck) Regulator, 370 kHz, 4.75 V to 45 V input, 1.8 A output, PWM Dimming, 8-SOIC EP, -40 to 150°C.

$2.04Ref. price · indicative, final on quote
TLD5085EJ datasheet
Packaging8-SOIC (0.154", 3.90mm Width) Exposed Pad
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

TLD5085EJ Technical Specifications
ParameterValue
TypeDC DC Regulator
SeriesLITIX™
Mounting typeSurface Mount
Voltage - output0.6V ~ 16V
Voltage4.75V
Current - output (Channel)1.8A
Frequency370kHz
Number of outputs1
Operating temperature-40°C ~ 150°C (TJ)
DimmingPWM
PackageBulk
TopologyStep-Down (Buck)
ApplicationsAutomotive, Backlight
Case8-SOIC (0.154\", 3.90mm Width) Exposed Pad
Internal switchYes

Product details

What this LITIX™ buck is, and where it fits

The Infineon TLD5085EJ is a DC-DC step-down (buck) regulator from the LITIX™ series, designed for automotive and backlight applications. It integrates the switching FET internally, so the BOM stays tight — just the inductor, input/output caps, and a few passives. Switching at 370 kHz keeps the magnetics small enough for a compact PCB layout, and the PWM dimming input gives you direct LED brightness control without an external DAC.

Key ratings for the BOM decision

Input range spans 4.75 V to 45 V. Single 1.8 A output channel.

Lifecycle and sourcing

For a BOM freeze or a PCN watch, this part is currently stable — no near-term obsolescence risk.

Frequently asked questions

What is the TLD5085EJ switching frequency?

The TLD5085EJ switches at 370 kHz, a fixed frequency that keeps the inductor small while staying below AM-band interference concerns in automotive environments.

What is the maximum output current of the TLD5085EJ?

The TLD5085EJ delivers up to 1.8 A per channel, enough for a single high-power LED string or multiple lower-current LEDs in parallel.

Does the TLD5085EJ support PWM dimming?

Yes, the TLD5085EJ has a PWM dimming input, allowing direct LED brightness control without an external DAC or additional circuitry.

What is the closest pin-compatible alternative to the TLD5085EJ?

The TLD5085EJ is part of the Infineon LITIX™ family. For a higher-current variant, look at the TLD5095 series — same pinout, higher output. Confirm the exact spec against your load requirements before substituting.