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H7344-A

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Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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H7344-A

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

H7344-A from Shanghai Siproin Microelectronics, 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, left pin in the SOT89 top view; the SOT89 tab is not labelled on the drawing.
2 VIN power_in Input supply pin, middle pin; absolute maximum supply voltage -0.3V to 18V, recommended input up to 15V.
3 VOUT power_out Regulated 4.4V output (±2%) for H7344-A, up to 250mA output current.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
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 4.312 4.4 4.488 V VIN=6.4V; IOUT=40mA 6
Output Current IOUT 250 mA VIN=6.4V 6
Load Regulation ΔVOUT 45 90 mV VIN=6.4V; 1mA≤IOUT≤80mA 6
Current Consumption ISS 2 3 μA VIN=6.4V; no load 6
Input Voltage VIN 15 V 6
Temperature Coefficient ΔVOUT/ΔTa -0.5 0.5 mV/℃ VIN=6.4V; IOUT=40mA; -40℃<Ta<85℃ 6
Supply Voltage -0.3 18 V 2
Operating Temperature -30 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: H7344-A
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: h7344-a-etched.step / h7344-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); h7344-a.step / h7344-a.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (14 pp, sha256 792fed91578d2bec, retrieved 2026-10-18, 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