component
HE2280A33MR
Public Made by Adomby adom
HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHE2280A33MR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
HE2280A33MR from HEERMICR, in a SOT-23-3. 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 reference for the regulator, shown at the bottom left of the SOT23-3 top view. |
| 2 | VOUT | power_out | Fixed 3.3V regulated output (±1% for the A grade, up to 150mA), with a recommended 10uF ceramic output capacitor and an absolute maximum of VSS+6.0V. |
| 3 | VIN | power_in | Supply input rated to VSS+80V absolute maximum (60V maximum recommended), with a recommended 10uF ceramic input capacitor placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEERMICR |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage (absolute, referred to VSS) | VIN | -0.3 | 80 | V | Referred to VSS | 3 | |
| Output Voltage pin (absolute, referred to VSS) | VOUT | -0.3 | 6 | V | Referred to VSS | 3 | |
| Output Current | IOUT | 400 | mA | 3 | |||
| Power Dissipation | Pd | 400 | mW | SOT23-3 | 3 | ||
| Thermal Resistance Junction-to-Ambient | RθJA | 250 | ℃/W | SOT23-3, per JESD 51-7 (note 3) | 3 | ||
| Operating Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| Soldering Temperature | Tsolder | 260 | ℃ | 10s | 3 | ||
| ESD Human Body Model | V(ESD-HBM) | -4000 | 4000 | V | ANSI/ESDA/JEDEC JS-001-2014, Class 2 | 3 | |
| ESD Charged Device Model | V(ESD-CDM) | -200 | 200 | V | ANSI/ESDA/JEDEC JS-002-2014, Class C0b | 3 | |
| Latch-up Current | ILATCH-UP | -150 | 150 | mA | JEDEC STANDARD NO.78E, Class I | 3 | |
| Supply Voltage at VIN (recommended) | VIN | 60 | V | 3 | |||
| Operating Junction Temperature Range | Tj | -40 | 125 | °C | 3 | ||
| Operating Free Air Temperature Range | TA | -40 | 85 | °C | 3 | ||
| Input Voltage | VIN | 80 | V | 4 | |||
| Supply Current | IQ | 2 | 3 | uA | VIN=12V, ILOAD=0mA | 4 | |
| Output Voltage HE2280 (A), 3.3V grade | VOUT1 | 3.3 | V | VIN=12V, IOUT=10mA | 4 |
CAD (KiCad official)
- Symbol:
HE2280A33MR - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
he2280a33mr-etched.step/he2280a33mr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he2280a33mr.step/he2280a33mr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
00ab58f3bb61acb0, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).