component

TLE4252D

Public Unreviewed

by Ray

Infineon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmictle4252d
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

TLE4252D

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

TLE4252D 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 Supply voltage input. Connects to battery or a pre-regulated voltage (e.g. DC-DC converter output). Operating range 3.5 V to 40 V; absolute max -42 V to +45 V (reverse-polarity proof).
2 EN input Enable input for tracker. Active-high turns the device on (V_EN,on = 2.0-40 V); active-low turns tracker off (V_EN,off = 0-0.8 V) placing it in stand-by (I_q ~ 0-2 uA). Internal ~1.5 MOhm pull-down resistor.
3 GND power_in Ground. Connected to the heatsink (exposed tab) of the PG-TO252 package.
4 ADJ input Adjust / reference input for tracker. Reference voltage applied directly or via an external resistor divider sets the output voltage (V_Q tracks V_ADJ). Operating range 1.5 V to 40 V (or 0-1.5 V when V_Q <= V_ADJ + dV_Q). Input bias current typ. 0.1 uA.
5 Q power_out Regulated output of tracker. Sources up to 250 mA (typ. 350 mA) tracking V_ADJ with +/-10 mV accuracy. Requires an output capacitor C_Q >= 10 uF with 0 <= ESR <= 5 Ohm to GND for stable operation.

Key specifications

Parameter Value
Manufacturer Infineon
Package TO-252-4
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TLE4252DD

CAD (KiCad official)

  • Symbol: TLE4252D
  • Footprint: Package_TO_SOT_SMD:TO-252-4
  • 3D model: TO-252-4 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Infineon datasheet (13 pp, sha256 1c833fe7be638987, 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