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Contents

README

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HE9073A25M5R

HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

HE9073A25M5R from HEERMICR, 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 Unregulated supply input. Operating range 2.0 V to 7.0 V (abs max 9.0 V). Bypass with CIN >= 4.7 µF to GND close to the pin.
2 GND power_in Device ground reference for the regulator and internal reference. Connect to system ground.
3 CE input Chip Enable (active-high). VIH >= 1.2 V enables the regulator; VIL <= 0.4 V places the device in shutdown (ISD <= 0.1 µA). Do not leave floating; abs max VON/OFF = VIN + 0.3 V.
4 NC unconnected No internal connection. Leave floating or tie to GND; do not use as a signal via.
5 VOUT power_out Regulated 2.5 V output (±1%). Delivers up to ~500 mA typical (550 mA current limit). Requires COUT >= 4.7 µF ceramic to GND for stability.

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • HE9073A25M5R
  • HE9073A25M5RMR
  • HE9073A25M5RPR
  • HE9073A25M5RD4R

CAD (KiCad official)

  • Symbol: HE9073A25M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: he9073a25m5r-etched.step / he9073a25m5r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he9073a25m5r.step / he9073a25m5r.glb are the bare package body.

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