component

HE2021A25HPR

Public Made by Adom

by adom

HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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HE2021A25HPR

HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

HE2021A25HPR from HEERMICR, in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin of the regulator.
2 VIN power_in Input supply voltage pin; absolute maximum supply voltage is 35V and the stated input voltage maximum is 35V.
3 VOUT power_out Regulated output pin delivering up to 200mA, fixed 2.5V output for the HE2021A25 version.

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-89-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage -0.3 35 V 2
Operating Temperature -40 85 ℃ 2
Storage Temperature -50 125 ℃ 2
Thermal Resistance (Junction to Ambient), SOT89 package θJA 200 ℃/W Assume no ambient airflow, no heat sink 2
Power Dissipation, SOT89 package PD 0.5 W Ta= 25℃ 2

CAD (KiCad official)

  • Symbol: HE2021A25HPR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: he2021a25hpr-etched.step / he2021a25hpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he2021a25hpr.step / he2021a25hpr.glb are the bare package body.

Provenance

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

  • Datasheet: HEERMICR datasheet (9 pp, sha256 7e6b713cd5492e1f, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF