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Contents

README

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HE9073A15M5R

HEERMICR · Linear Voltage Regulators (LDO) · SOT-23-5

HE9073A15M5R 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 pin, operating range 2.0V to 7.0V (absolute maximum VSS+9.0V), bypass with a CIN capacitor to GND placed close to the IC.
2 GND power_in Ground pin, reference (VSS) for the regulator.
3 CE input Enable (EN/CE) input that shuts down the IC internally, logic-high at least 1.2V enables and logic-low at most 0.4V (at VIN=5.0V), and should be driven to VIN or VSS, with a maximum of VIN+0.3V.
4 NC unconnected No-connect pin with no internal function stated in the datasheet.
5 VOUT power_out Regulated 1.5V output (±1% accuracy) for this part number, up to 500mA output current, with an output capacitor of at least 4.7µF placed close to the pin.

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-23-5
Category Power Management ICs
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 2 7 V 5
Quiescent Current IQ 0.3 0.7 μA VIN > VOUT, EN=VIN, No load 5
Output Voltage Accuracy VOUT -1 1 % IOUT=1mA 5
Shutdown Ground Current ISD 0.1 μA VEN=0V 5
VOUT Shutdown Leakage Current ILEAK 0.1 μA VOUT=0V 5
Dropout Voltage VDROP 100 120 mV IOUT=100mA, VOUT=3.3V 5
Dropout Voltage VDROP 200 250 mV IOUT=200mA, VOUT=3.3V 5
Load Regulation ΔLOAD 20 30 mV VIN=VOUT+1V, 1mA≤IOUT≤300mA 5
Line Regulation ΔLINE 0.1 0.15 %/V IOUT=1mA, VOUTNOM+0.5V≤VIN≤7V 5
EN Threshold Voltage, Logic-High VIH 1.2 V VIN=5.0V, IOUT=1mA 5
EN Threshold Voltage, Logic-Low VIL 0.4 V VIN=5.0V 5
Output Current IOUT_MAX 500 mA VIN - VOUT=0.5V 5
Current Limit ILIMIT 550 mA VIN=5V 5
Power Supply Rejection Ratio PSRR 65 dB IOUT=100mA, f=10KHz 5
Power Supply Rejection Ratio PSRR 70 dB IOUT=100mA, f=1KHz 5
Short/Start Load Current ISHORT 90 mA RL=1 5
Output Noise Voltage eNO 100 μVRMS 10Hz to 100kHz, COUT=1µF 5
Thermal Shutdown Temperature TSD 160 ℃ 5
Thermal Shutdown Hysteresis ΔTSD 20 ℃ 5
Input Voltage (Absolute Maximum) VIN -0.3 9 V VSS -0.3 to VSS+9.0 4
Output Current (Absolute Maximum) IOUT 550 mA 4
Power Dissipation SOT23-5 Pd 450 mW SOT23-5 4
Operating Temperature Topr -40 85 ℃ 4
Storage Temperature Tstg -40 125 ℃ 4
Soldering Temperature Tsolder 260 ℃ 260℃, 10s 4
ESD HBM V(ESD-HBM) -4000 4000 V ANSI/ESDA/JEDEC JS-001-2014, Class 2 4
ESD CDM V(ESD-CDM) -200 200 V ANSI/ESDA/JEDEC JS-002-2014, Class C0b 4
Latch-up Current ILATCH-UP -150 150 mA JEDEC STANDARD NO.78E, Class I 4
Supply voltage at VIN VIN 2 7 V 4
Operating junction temperature range Tj -40 125 °C 4
Operating free air temperature range TA -25 85 °C 4
Thermal Resistance Junction-to-ambient SOT23-5 RθJA 220 ℃/W SOT23-5, JESD 51-7 4

CAD (KiCad official)

  • Symbol: HE9073A15M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: he9073a15m5r-etched.step / he9073a15m5r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he9073a15m5r.step / he9073a15m5r.glb are the bare package body.

Provenance

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

  • Datasheet: HEERMICR datasheet (12 pp, sha256 27a01576a32d0f6f, retrieved 2026-10-22, 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