component

AP3428AKTTR-TP

Public Made by Adom

by adom

TECH PUBLIC DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicap3428akttr-tp
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs ap3428akttr-tp: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers ap3428akttr-tp: viewers · Ray 2mo ago
ap3428akttr-tp-etched.fit.json ap3428akttr-tp: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3428akttr-tp-etched.glb ap3428akttr-tp: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3428akttr-tp-etched.step ap3428akttr-tp: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3428akttr-tp.glb Publish 0.1.0 · Ray 2mo ago
ap3428akttr-tp.kicad_mod Publish 0.1.0 · Ray 2mo ago
ap3428akttr-tp.kicad_sym Publish 0.1.0 · Ray 2mo ago
ap3428akttr-tp.lbr Publish 0.1.0 · Ray 2mo ago
ap3428akttr-tp.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.1.0 · Ray 2mo ago
page.json ap3428akttr-tp: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 27d ago
README.md ap3428akttr-tp: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

AP3428AKTTR-TP

TECH PUBLIC · DC-DC Converters · SOT-23-5

AP3428AKTTR-TP from TECH PUBLIC, in a SOT-23-5. 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 VIN power_in Power supply input, 2.5V to 5.5V operating range (absolute max 6.5V). Must be closely decoupled to GND with a 10µF or greater ceramic capacitor to minimize the CIN/GND loop area.
2 GND power_in Analog ground pin. Maximize PCB copper area on this pin for best thermal and noise performance; a ground plane is highly desirable.
3 EN input Chip enable pin. Drive above VIH=1.5V to turn on the regulator; drive below VIL=0.4V to turn it off. Do not leave floating; input current ~1µA.
4 FB input Output feedback pin. Connect to the center of the output resistor divider (R1/R2) to program Vout = 0.6V * (1 + R1/R2). VREF = 0.6V typical (0.588-0.612V).
5 LX output Power switch output - switch node connecting to the external inductor. This pin ties to the drains of the internal P-ch and N-ch MOSFETs; keep PCB copper area on LX minimized to reduce switching noise.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • AP3428AKTTR-TP

CAD (KiCad official)

  • Symbol: AP3428AKTTR-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ap3428akttr-tp-etched.step / ap3428akttr-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap3428akttr-tp.step / ap3428akttr-tp.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 0f5ba041aa89d6c8, 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