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Contents

README

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LD1117S33TR-HXY

HXY MOSFET · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

LD1117S33TR-HXY from HXY MOSFET, in a SOT-223. 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 reference pin (labelled Vss/ADJ on the fixed-voltage pinout; Adj/GND in the block diagram, where it is the adjust pin on the ADJ version).
2 VOUT power_out Regulated output (3.3V ±2%, 3.234V to 3.366V for LD1117S33TR) delivering up to 800mA, with a 10uF tantalum output capacitor recommended for stability.
3 VIN power_in Input supply pin, absolute maximum 18V and recommended operating maximum 15V, with 10uF tantalum bypass capacitor recommended.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
Package SOT-223
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 (LD1117S33TR, 3.3V fixed) Vout 3.234 3.3 3.366 V 0≤Iout≤800mA , Vin=5.3V 3
Reference voltage Vref 1.225 1.25 1.275 V 3
Line regulation ΔVout 0.03 0.2 %/V Iout=10mA, 4.8V≤Vin≤12V 3
Load regulation ΔVout 6 24 mV Vin =4.8V, 10mA≤Iout≤800mA 3
Dropout voltage Vdrop 1.2 1.3 V Iout =100mA 4
Dropout voltage Vdrop 1.3 1.5 V Iout=800mA 4
Quiescent current (LD1117S33TR) Iq 2 5 mA Vin=12V 4
Temperature coefficient ΔV/ΔT -100 100 ppm 4
Input voltage (maximum operating range) 15 V Range of operation input voltage 1
Ambient operating temperature -20 85 °C Environment temperature 1
Recommended operating junction temperature Tj -20 125 °C 2
Maximum input voltage VIN 18 V 2
Maximum operating junction temperature 150 °C 2
Storage temperature TS -55 150 °C 2
Thermal resistance, junction-to-ambient (SOT-223) θJA 20 °C/W 2
Thermal resistance, junction-to-case (SOT-223) θJC 20 °C/W 4

CAD (KiCad official)

  • Symbol: LD1117S33TR-HXY
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: ld1117s33tr-hxy-etched.step / ld1117s33tr-hxy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ld1117s33tr-hxy.step / ld1117s33tr-hxy.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (8 pp, sha256 6beb650f3d0a7188, 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