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AMS1117DCY-ADJRG

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

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AMS1117DCY-ADJRG

HANSCHIP semiconductor · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3L

AMS1117DCY-ADJRG from HANSCHIP semiconductor, in a SOT-223-3L. 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 for the fixed-output versions and the adjust terminal for the ADJ version, with no separate voltage or current limit stated for this pin in the datasheet.
2 VOUT power_out Regulated output voltage; the ADJ version needs an output capacitor of at least 22 µF tantalum for stability, and stability falls as output current increases.
3 VIN power_in Unregulated input supply, with an absolute maximum of 15 V and a recommended operating input voltage of 12 V, and the dropout is 1.2 V at 800 mA output current.

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package SOT-223-3L
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
Reference voltage (ADJ), TJ=25C VREF 1.238 1.25 1.262 V IOUT=10mA, VIN-VOUT=2V, TJ=25℃ 4
Reference voltage (ADJ), full range VREF 1.225 1.25 1.27 V 10mA≤IOUT≤800mA, 14V≤VIN-VOUT≤10V 4
Dropout voltage at 100mA Vdrop 1 1.2 V IOUT=100mA 4
Dropout voltage at 500mA Vdrop 1.05 1.25 V IOUT=500mA 4
Dropout voltage at 800mA Vdrop 1.1 1.3 V IOUT=800mA 4
Quiescent current Iq 5 10 mA 4.25V≤VIN≤6.5V 4
Ripple rejection PSRR 60 75 dB Fripple=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP 4
Adjust pin current Iadj 60 120 µA 4
Adjust pin current change 0.2 5 µA 0≤IOUT≤800mA, 1.4V≤VIN-VOUT≤10V 4
Line regulation Rline 3 7 mV VINMIN≤VIN12V, VOUT=Fixed/Adj, IOUT=10mA 4
Current limit Ilimit 1.2 1.4 1.5 A 4
Input voltage (recommended) VIN 12 V 3
Operating junction temperature range TJ -40 125 ℃ 3
Input voltage (absolute maximum) VIN 15 V 3
Lead temperature (soldering) TLead 260 ℃ soldering, 5 s 3
Operating junction temperature (absolute maximum) TJ 150 ℃ 3
Storage temperature TSTG -65 150 ℃ 3
ESD capability ESD 2000 V 3
Junction-to-ambient thermal resistance (SOT-223-3L) θJA 120 ℃/W no heatsink 4

CAD (KiCad official)

  • Symbol: AMS1117DCY-ADJRG
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: ams1117dcy-adjrg-etched.step / ams1117dcy-adjrg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ams1117dcy-adjrg.step / ams1117dcy-adjrg.glb are the bare package body.

Provenance

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

  • Datasheet: HANSCHIP semiconductor datasheet (11 pp, sha256 06ecdb8ef5490fdc, retrieved 2026-10-18, 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