component
HE2280A50MR
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
markdownHE2280A50MR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
HE2280A50MR 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, the common reference (VSS) for the regulator; the datasheet calls for a wide copper trace on GND. |
| 2 | VOUT | power_out | Regulated 5.0V output (HE2280A50MR), up to 150mA, absolute maximum VSS+6.0V, and it needs a 10uF X7R/X5R ceramic output capacitor to GND for stability. |
| 3 | VIN | power_in | Supply input, absolute maximum VSS+80V with recommended maximum of 60V, decoupled with a 10uF ceramic capacitor to GND placed close to the device. |
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 | VIN | 80 | V | 4 | |||
| Output voltage tolerance (HE2280(A) grade, 5.0V) | VOUT | -1 | 1 | % | HE2280(A) ±1% output voltage | 1 | |
| Supply Current | IQ | 2 | 3 | uA | VIN=12V, ILOAD=0mA | 4 | |
| Maximum Output Current | IOUT(Max) | 200 | mA | 4 | |||
| Supply voltage at 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 (absolute maximum, relative to VSS) | VIN | -0.3 | 80 | V | Relative to VSS | 3 | |
| Output Voltage (absolute maximum, relative to VSS) | VOUT | -0.3 | 6 | V | Relative to VSS | 3 | |
| Output Current | IOUT | 400 | mA | 3 | |||
| Power Dissipation SOT23-3 | Pd | 400 | mW | 3 | |||
| Thermal Resistance SOT23-3 | RθJA | 250 | ℃/W | Package thermal impedance per JESD 51-7 (note 3) | 3 | ||
| Operating Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| Soldering Temperature | Tsolder | 260 | ℃ | 10 s | 3 | ||
| ESD Human Body Model | V(ESD-HBM) | -4000 | 4000 | V | HBM, ANSI/ESDA/JEDEC JS-001-2014, Class 2 | 3 | |
| ESD Charged Device Model | V(ESD-CDM) | -200 | 200 | V | CDM, ANSI/ESDA/JEDEC JS-002-2014, Class C0b | 3 | |
| Latch-up | ILATCH-UP | -150 | 150 | mA | JEDEC JESD78E, Temperature Class I | 3 | |
| Line Regulation | ΔVOUT/ΔVIN•VOUT | 0.01 | %/V | IOUT=1mA, (Vset+0.5v)≦VIN≦55V | 4 | ||
| Load Regulation | ΔVOUT | 0.02 | %/ mA | VIN=12V, 1mA≦IOUT≦100mA | 4 | ||
| Short Current | ISHORT | 80 | mA | RL=1Ω | 4 | ||
| Output Noise Voltage | eNO | 50 | uVRMS | COUT=1uF, BW = 300Hz~50kHz | 4 | ||
| Output Voltage Temperature Coefficient | ΔVOUT/ΔT•VOUT | 100 | ppm/℃ | IOUT=10mA | 4 |
CAD (KiCad official)
- Symbol:
HE2280A50MR - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
he2280a50mr-etched.step/he2280a50mr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he2280a50mr.step/he2280a50mr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
00ab58f3bb61acb0, retrieved 2026-10-18, 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).