component
HE2240A36HPR
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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownHE2240A36HPR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
HE2240A36HPR 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; connect input and output capacitor grounds back to it with wide, short copper traces. |
| 2 | VIN | power_in | Input supply, 3.0V to 40V operating (absolute maximum -0.3V to 40V); decouple with a 10uF ceramic capacitor placed close to the device. |
| 3 | VOUT | power_out | Regulated output of 3.6V (±2%) for the 36 variant, up to 250mA; requires a 10uF 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 | |
| EN Threshold Voltage, shutdown | VIL | 0.4 | V | Shutdown | 4 | ||
| EN Threshold Voltage, start-up | VIH | 0.9 | V | Start-Up | 4 | ||
| Supply Voltage (absolute maximum) | -0.3 | 40 | V | 3 | |||
| Operating Temperature | -40 | 85 | ℃ | 3 | |||
| Storage Temperature | -50 | 125 | ℃ | 3 | |||
| Thermal Resistance (Junction to Ambient), SOT89 | θJA | 200 | ℃/W | Assume no ambient airflow, no heat sink | 3 | ||
| Power Dissipation, SOT89 | PD | 0.5 | W | Ta= 25℃ | 3 | ||
| Maximum Output Current | IOUT(Max) | 250 | mA | 4 | |||
| Line Regulation | ΔVOUT/ΔVIN•VOUT | 0.1 | %/V | IOUT=10mA, (Vset+1.0v)≦VIN≦38V | 4 | ||
| Load Regulation | ΔVOUT | 30 | mV | VIN=10V, 1mA≦IOUT≦100mA | 4 | ||
| Power Supply Rejection Rate, 1 kHz | PSRR | 80 | dB | VIN=12V VOUT=3.3V f=1KHz, IOUT=10mA | 4 | ||
| Power Supply Rejection Rate, 10 kHz | PSRR | 60 | dB | VIN=12V VOUT=3.3V f=10KHz, IOUT=10mA | 4 | ||
| Short Current | ISHORT | 42 | mA | RL=1Ω | 4 | ||
| Output Noise Voltage | eNO | 50 | uVRMS | IOUT=50mA, BW = 300Hz~50kHz | 4 | ||
| Output Voltage Temperature Coefficient | ΔVOUT/ΔT•VOUT | 100 | ppm/℃ | IOUT=10mA | 4 |
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:
HE2240A36HPR - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
he2240a36hpr-etched.step/he2240a36hpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he2240a36hpr.step/he2240a36hpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
30afcc83266a65aa, retrieved 2026-10-19, 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).