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Contents

README

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HT7130-3

Holtek Semicon · Linear Voltage Regulators (LDO) · SOT-89-3

HT7130-3 from Holtek Semicon, 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 of the regulator, the return for the input and output.
2 VIN power_in Supply input, operating up to 30V (absolute maximum 33V); HT7130-3 needs VIN of 4V or more for line regulation spec.
3 VOUT power_out Regulated 3.0V output (2.94V to 3.06V) delivering at least 20mA, typically 30mA.

Key specifications

Parameter Value
Manufacturer Holtek Semicon
Package SOT-89-3
Category Power Management ICs
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 30 V 7
Output Voltage VOUT 2.94 3 3.06 V VIN=5V, IOUT=10mA, Ta=25°C 7
Output Current IOUT 20 30 mA VIN=5V, Ta=25°C 7
Load Regulation ΔVOUT 15 45 mV VIN=5V, 1mA≤IOUT≤20mA 7
Dropout Voltage VDIF 35 100 mV IOUT=1mA, ΔVOUT=2% 7
Quiescent Current ISS 1 1.5 µA VIN=5V, No load 7
Line Regulation 0.1 0.2 %/V 4V≤VIN≤30V, IOUT=1mA 7
Temperature Coefficient 100 ppm/°C VIN=5V, IOUT=10mA, -40°C<Ta<85°C, printed ±100 7
Supply Voltage -0.3 33 V 4
Storage Temperature -60 150 °C 4
Operating Temperature -40 85 °C 4
Maximum Junction Temperature 150 °C 4
Thermal Resistance Junction to Ambient θJA 200 °C/W SOT89, no ambient airflow, no heat sink 5
Power Dissipation PD 0.5 W SOT89, measured at Ta=25°C 5

CAD (KiCad official)

  • Symbol: HT7130-3
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ht7130-3-etched.step / ht7130-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7130-3.step / ht7130-3.glb are the bare package body.

Provenance

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

  • Datasheet: Holtek Semicon datasheet (17 pp, sha256 df0fc0ef671372a4, 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