component
he2031a33mpr
Public Unreviewedby Ray
HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownHE2031A33MPR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
HE2031A33MPR from HEERMICR, in a SOT-89. 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 | Device ground reference. Tie to system ground; carries the return current of the pass element and quiescent bias. |
| 2 | VIN | power_in | Unregulated input supply pin, 1.5 V to 25 V absolute max. Bypass to GND with 10 uF (electrolytic recommended, or ceramic with a series 1.2-1.8 Ω resistor per Note 2). |
| 3 | VOUT | power_out | Regulated 3.3 V output (±1% tolerance), up to 400 mA when Vin-Vout ≥ 1 V. Requires a 10 uF output capacitor to GND for stability and load-transient response. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEERMICR |
| Package | SOT-89 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
HE2031A33MPRHE2031A33MPRHE2031A33MPGHE2031A33MPRHE2031A33MMRHE2031A33MPRHE2031A33MMGHE2031A33MPRHE2031A33MM3RHE2031A33MPRHE2031A33MM3G
CAD (KiCad official)
- Symbol:
HE2031A33MPR - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (None pp, sha256
da0d9ffdd9bd5fee, 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).