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ASPL1117-3.3-DT-R

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ASDsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ASPL1117-3.3-DT-R

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

ASPL1117-3.3-DT-R from ASDsemi, 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/ADJ power_in Ground reference on the fixed 3.3V version (ADJ pin on the adjustable version, where a bypass capacitor CADJ to ground can improve ripple rejection).
2 VOUT power_out Regulated 3.3V output (3.234 to 3.366V) with up to 0.9A maximum output current, recommended 10uF tantalum output capacitor for stability.
3 VIN power_in Input supply with a maximum of 24V and about 1.3V dropout at 0.9A, recommended 10uF tantalum bypass capacitor.

Key specifications

Parameter Value
Manufacturer ASDsemi
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 (ASPL1117-3.3) Vout 3.234 3.3 3.366 V 0≤Iout≤0.9A, Vin=5.3V 3
Load regulation (ASPL1117-3.3) △Vout 6 24 mV Vin =4.8V, 10mA≤Iout≤0.9A 3
Line regulation (row printed ASPL1117-3.3L) ΔVout 0.03 0.2 %/V Iout=10mA, 4.8V≤Vin≤12V 3
Dropout voltage Vdrop 1.23 1.3 V Iout =100mA 4
Dropout voltage Vdrop 1.3 1.5 V Iout=1A 4
Current limit Ilimit 0.8 0.9 A Vin-Vout=2V;Tj =25℃ 4
Quiescent current (ASPL1117-3.3) Iq 2 5 mA ASPL1117-3.3,Vin=12V 4
Ripple rejection (PSRR) PSRR -65 dB f=100Hz, Cout=104 4
Ripple rejection (PSRR) PSRR -60 dB f=10KHz, Cout=104 4
Ripple rejection (PSRR) PSRR -57 dB f=22KHz, Cout=104 4
Temperature coefficient ΔV/ΔT -100 100 ppm 4
Thermal resistance junction-to-case θJC 20 ℃/W SOT-223 4
Max input voltage 24 V 2
Max power dissipation Pd 1 W 2
Max output current 0.9 A 2
Recommended operating junction temperature Tj -20 125 ℃ 2
Max operating junction temperature Tj 150 ℃ 2
Ambient temperature Ta -20 85 ℃ 2
Storage temperature Ts -40 150 ℃ 2
Lead temperature and time 260 ℃ 10S 2

CAD (KiCad official)

  • Symbol: ASPL1117-3.3-DT-R
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: aspl1117-3-3-dt-r-etched.step / aspl1117-3-3-dt-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aspl1117-3-3-dt-r.step / aspl1117-3-3-dt-r.glb are the bare package body.

Provenance

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

  • Datasheet: ASDsemi datasheet (9 pp, sha256 638426a95087aeec, 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