component

TLE42754D

Public Made by Adom

by adom

Infineon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmictle42754d
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs tle42754d: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json page.json: fold the "TAB" entry into pin 3. On TO-252-4 the tab is not a separate pad - it is that lead - so nothing wa… · Ray
page.json tle42754d: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
README.md tle42754d: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
tle42754d-etched.fit.json tle42754d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tle42754d-etched.glb tle42754d: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
tle42754d-etched.step tle42754d: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
tle42754d.glb fix footprint: TO-252-2 -> TO-252-4 (pad_count, 4 pins) · Ray
tle42754d.kicad_mod fix footprint: TO-252-2 -> TO-252-4 (pad_count, 4 pins) · Ray
tle42754d.kicad_sym Publish 0.1.0 · Ray
tle42754d.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
tle42754d.step fix footprint: TO-252-2 -> TO-252-4 (pad_count, 4 pins) · Ray

TLE42754D

Infineon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-4

TLE42754D from Infineon, in a TO-252-4. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 I power_in Input supply pin. Regulated input from the vehicle battery / raw supply (operating input up to 42 V; withstands -42 V to 45 V). An input capacitor C_I to GND close to the IC terminals is recommended for compensating line influences.
2 RO output Reset Output. Open-collector output driven by the internal reset generator when the output voltage falls below V_Q,rt (typ. 4.65 V). Requires an external pull-up resistor to a positive potential; leave open if the reset function is not needed.
3 GND power_in Ground. On the TLE42754D (PG-TO252-5), pin 3 is not internally connected as GND on the leads; ground is provided via the TAB. (On the TLE42754G PG-TO263-5, pin 3 is internally connected to the tab.) Connect to system ground.
4 D passive Reset Delay Timing. Connect a ceramic capacitor from D to GND to program the power-on/undervoltage reset delay time. Leave open if the reset function is not needed.
5 Q power_out Regulated Output. 5 V ± 2% output capable of sourcing up to 450 mA with integrated current limiting. Block to GND with an output capacitor C_Q close to the IC terminals, respecting the C_Q/ESR values in the Functional Range table.
TAB GND power_in Exposed metal TAB. Serves as the device ground and primary heat-sinking path; connect to the heatsink area / ground plane on the PCB.

Key specifications

Parameter Value
Manufacturer Infineon
Package TO-252-4
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • TLE42754DD
  • TLE42754DG
  • TLE42754DE

CAD (KiCad official)

  • Symbol: TLE42754D
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-4 (KiCad packages3D, STEP)
  • 3D model files: tle42754d-etched.step / tle42754d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tle42754d.step / tle42754d.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tle42754d.step 178 KB You want the bare part, or you mark your own boards.
tle42754d-etched.step 1.5 MB You want the part with TLE42754D already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 428 faces against 127 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Infineon datasheet (29 pp, sha256 903108b634588660, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF