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HK7333-A

Public Made by Adom

by adom

HK Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HK7333-A

HK · Linear Voltage Regulators (LDO) · SOT-89-3

HK7333-A from HK, 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 VSS power_in Ground reference pin of the regulator, shared with the TO-92 package pinout.
2 VIN power_in Regulator input pin; the absolute maximum input voltage is 18 V.
3 VOUT power_out Regulated output pin; output voltage is limited to VSS-0.3 V to VIN+0.3 V and output current to 250 mA.

Key specifications

Parameter Value
Manufacturer HK
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
Output Voltage, effective (VOUT(E)); VOUT(T) specified VOUT(E) 0.98 1.02 ×VOUT(T) IOUT=40mA, VIN=Vout+1V 3
Load Regulation ΔVOUT 15 40 mV VIN=Vout+1V, 1mA≤IOUT≤60mA 3
Dropout Voltage Vdif 80 mV IOUT=40mA 3
Supply Current ISS 3 4 μA VIN=Vout+1V 3
Line Regulation ΔVOUT/ΔVIN×VOUT 0.1 0.2 %/V IOUT=40mA, Vout+1V≤VIN≤18V 3
Temperature Coefficient ΔVOUT/ΔTa -0.7 0.7 mV/℃ VIN=Vout+1V, IOUT=40mA, -40℃<Ta<85℃ 3
Maximum Output Voltage (maximum output current) IOUT_max 250 mA VIN=Vout+1V 3
Input Voltage VIN 18 V 2
Output Current Iout 250 mA 2
Operating Temperature Range TOPR -40 85 ℃ 2
Storage Temperature Range TSTG -40 125 ℃ 2
Power Dissipation PD 500 mW SOT89-3 package 2
Output Voltage, specified (VOUT(T)) for suffix 33 VOUT(T) 3.3 V HK7333 (part-number code 33 = 3.3V) 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing ppa body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Shanghai Hang 7

CAD (KiCad official)

  • Symbol: HK7333-A
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: hk7333-a-etched.step / hk7333-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hk7333-a.step / hk7333-a.glb are the bare package body.

Provenance

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

  • Datasheet: HK datasheet (7 pp, sha256 1fd17fecb89b20cc, retrieved 2026-11-05, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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