component
HE2021A44HMR
Public Unreviewedby Ray
HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownHE2021A44HMR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
HE2021A44HMR from HEERMICR, in a SOT-23-3. 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 | GND | power_in | Ground / common return. Single-point ground for input and output bypass capacitors. |
| 2 | VOUT | power_out | Regulated 4.4V (±1%) output, capable of sourcing up to 200mA. Requires a 10µF output capacitor (C2) to ground for stability. |
| 3 | VIN | power_in | Unregulated input supply, 5.4V to 35V absolute max (recommended VIN ≥ VOUT + dropout). Requires a 10µF input capacitor (C1) to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEERMICR |
| Package | SOT-23-3 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
HE2021A44HMRHE2021A44HMRHMGHE2021A44HMRHTRHE2021A44HMRHTGHE2021A44HMRHPRHE2021A44HMRHPGHE2021A44HMRHPBRHE2021A44HMRHPBGHE2021A44HMRHM5RHE2021A44HMRHM5G
CAD (KiCad official)
- Symbol:
HE2021A44HMR - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
7e6b713cd5492e1f, 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).