component
HE2021A33HPR
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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README
markdownHE2021A33HPR
HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
HE2021A33HPR 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, the left lead in the SOT89 top view. |
| 2 | VIN | power_in | Input supply pin, the middle lead in the SOT89 top view, with absolute maximum supply voltage of -0.3V to 35V. |
| 3 | VOUT | power_out | Regulated 3.3V output pin (±1% tolerance), the right lead in the SOT89 top view, rated for 200mA output current. |
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 |
|---|---|---|---|---|---|---|---|
| Output Voltage | VOUT | 3.267 | 3.3 | 3.333 | V | VIN=8V, IOUT=10mA | 3 |
| Output Current | IOUT | 200 | mA | VIN=6.3V | 3 | ||
| Load Regulation | ΔVOUT | 40 | 60 | mV | VIN=8V, 1mA≤IOUT≤20mA | 3 | |
| Current Consumption | ISS | 2 | 3 | μA | VIN=8V, No load | 3 | |
| Input Voltage | VIN | 35 | V | 3 | |||
| Output Voltage Temperature Coefficient | -0.12 | 0.12 | mV/℃ | VIN=8V, IOUT=10mA, 0℃<Ta<100℃ | 3 | ||
| Supply Voltage | -0.3 | 35 | V | 2 | |||
| Operating Temperature | -40 | 85 | ℃ | 2 | |||
| Storage Temperature | -50 | 125 | ℃ | 2 | |||
| Thermal Resistance (Junction to Ambient) | θJA | 200 | ℃/W | SOT89, no ambient airflow, no heat sink | 2 | ||
| Power Dissipation | PD | 0.5 | W | SOT89, Ta=25℃ | 2 |
CAD (KiCad official)
- Symbol:
HE2021A33HPR - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
he2021a33hpr-etched.step/he2021a33hpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he2021a33hpr.step/he2021a33hpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (9 pp, sha256
8d7e2c2e64e2ae10, 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).