component

HE2210M550R

Public Made by Adom

by adom

HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HE2210M550R

HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

HE2210M550R from HEERMICR, in a SOT-23-5. 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 VIN power_in Input supply, 3.0V to 50V per electrical characteristics (recommended operating maximum 30V), decoupled with a ceramic capacitor placed close to the device.
2 GND power_in Ground reference for the regulator.
3 CE input Chip enable (EN) input; logic-high threshold 1.0V min and logic-low threshold 0.4V max, turns the output on and off.
4 NC unconnected No internal connection.
5 VOUT power_out Regulated 5.0V output (±2%) for HE2210M550R, up to 400mA, requires an output capacitor (10µF recommended, X7R/X5R) for stability.

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

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 50 V 4
Quiescent Current IQ 2 2.3 μA VIN=12V, No load 4
Output Voltage Accuracy VOUT -2 2 % VIN=12V, IOUT=10mA 4
EN Threshold Voltage, Logic-High VIH 1 V VIN=5.0V, IOUT=1mA 4
EN Threshold Voltage, Logic-Low VIL 0.4 V VIN=5.0V 4
Current Limit ILIMIT 300 450 mA VIN= VOUT +1V 4
Shutdown Ground Current ISD 0.1 μA VIN=0V 4
VOUT Shutdown Leakage Current ILEAK 0.1 μA VOUT = 0V 4
Input Voltage (absolute maximum) VIN -0.3 50 V Printed as VSS-0.3 to VSS+50.0, relative to VSS 3
Output Voltage (absolute maximum) VOUT -0.3 6 V Printed as VSS-0.3 to VSS+6.0, relative to VSS 3
Output Current IOUT 400 mA 3
Power Dissipation SOT23-5 Pd 400 mW SOT23-5 package 3
Thermal Resistance Junction-to-Ambient SOT23-5 RθJA 250 ℃/W SOT23-5, 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
Supply Voltage at VIN VIN 30 V 3
Operating Junction Temperature Range Tj -40 125 °C 3
Operating Free Air Temperature Range TA -40 85 °C 3
ESD Human Body Model V(ESD-HBM) -4000 4000 V HBM, ANSI/ESDA/JEDEC JS-001-2014, Class 2; printed as ±4000 V 3
ESD Charged Device Model V(ESD-CDM) -200 200 V CDM, ANSI/ESDA/JEDEC JS-002-2014, Class C0b; printed as ±200 V 3
Latch-up Current ILATCH-UP -150 150 mA JEDEC STANDARD NO.78E, Temperature Classification Class I; printed as ±150 mA 3

CAD (KiCad official)

  • Symbol: HE2210M550R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: he2210m550r-etched.step / he2210m550r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he2210m550r.step / he2210m550r.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HEERMICR datasheet (10 pp, sha256 97c90148ca9fd8ee, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF