component

HE9073A28MR

Public Unreviewed

by Ray

HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmiche9073a28mr
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

HE9073A28MR

HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

HE9073A28MR from HEERMICR, in a SOT-23. 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 Unregulated supply input. Operating range 2.0 V to 7.0 V (absolute max 9.0 V vs VSS). Bypass to GND with a low-ESR capacitor (>=4.7 uF, 10 uF recommended) placed close to the pin.
2 GND power_in Device ground / VSS reference. Keep wiring impedance from VIN and VOUT capacitors to this pin as low as possible for stability.
3 VOUT power_out Regulated LDO output, fixed 2.8 V (+/-1%) for the A28 option code. Delivers up to 500 mA (typ), 550 mA current limit. Requires a >=4.7 uF (10 uF recommended) low-ESR output capacitor to GND for phase compensation.

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • HE9073A28MR
  • HE9073A28M5R
  • HE9073A28MRA30PR
  • HE9073A28MRA33PR
  • HE9073A28MRA50PR
  • HE9073A28MRA28D4R

CAD (KiCad official)

  • Symbol: HE9073A28MR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HEERMICR datasheet (12 pp, sha256 27a01576a32d0f6f, 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