component
HE2240A50HPR
Public Made by Adomby 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.
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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Contents
README
markdownHE2240A50HPR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
HE2240A50HPR 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, which the datasheet says input and output capacitor grounds should return to with a wide, short copper trace. |
| 2 | VIN | power_in | Input supply pin with a 3.0V to 40V operating input range (absolute maximum 40V), decoupled by a recommended 10µF ceramic capacitor to GND. |
| 3 | VOUT | power_out | Regulated 5.0V output (±2%) delivering up to 250mA, requiring a recommended 10µF X7R/X5R ceramic output capacitor for stability. |
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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 3 | 40 | V | 4 | ||
| Supply Current | IQ | 1.4 | 3 | uA | VIN=12V, ILOAD=0mA | 4 | |
| Output Voltage (HE2240 5.0V variant), accuracy | VOUT2 | -2 | 2 | % | VIN=12V, IOUT=10mA; printed as Vset0.98 / Vset1.02 in the table, tolerance ±2% from Features | 1 | |
| EN Threshold Voltage (shutdown) | VIL | 0.4 | V | Shutdown | 4 | ||
| EN Threshold Voltage (start-up) | VIH | 0.9 | V | Start-Up | 4 | ||
| Supply Voltage | -0.3 | 40 | V | 3 | |||
| Operating Temperature | -40 | 85 | ℃ | 3 | |||
| Storage Temperature | -50 | 125 | ℃ | 3 | |||
| Thermal Resistance (Junction to Ambient) | θJA | 200 | ℃/W | SOT89; no ambient airflow, no heat sink | 3 | ||
| Power Dissipation | PD | 0.5 | W | SOT89; Ta=25℃ | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | input and output capacitors must be back to the HE2240 ground pin using as wide and as short of a copper trace as is practical.Connections using long trace lengths, narrow trace widths, and/or | 6 |
CAD (KiCad official)
- Symbol:
HE2240A50HPR - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
he2240a50hpr-etched.step/he2240a50hpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he2240a50hpr.step/he2240a50hpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
30afcc83266a65aa, 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).