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Contents

README

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ICW1117-1.5

ICW · Linear Voltage Regulators (LDO) · SOT-89

ICW1117-1.5 from ICW, in a SOT-89. 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 on the fixed-output versions such as the 1.5V ICW1117-1.5 (labelled ADJ/GND on the package drawing, it is the ADJ reference pin on the adjustable version); the load return can connect here.
2 VOUT power_out Regulated output delivering up to 1A, which needs a capacitor to GND with ESR not above 0.5 ohm (typically 10uF tantalum); the 1.5V version regulates to 1.47V min, 1.5V typ and 1.53V max.
3 VIN power_in Input supply with an absolute maximum of 18V, bypassed with a 10uF tantalum capacitor recommended at the input.

Key specifications

Parameter Value
Manufacturer ICW
Package SOT-89
Category Power Supply Chip
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 (1.5V version) Vout 1.47 1.5 1.53 V 0≤Iout≤1A, Vin=2.8V 3
Line regulation (1.5V version) ΔVout 5 26 mV Iout=10mA, 2.8V≤Vin≤10V 4
Load regulation (1.5V version) ΔVout 10 40 mV Vin=2.8V, 10mA≤Iout≤1A 4
Dropout voltage Vdrop 1.15 1.3 V Iout=100mA 5
Dropout voltage Vdrop 1.3 1.5 V Iout=1A 5
Quiescent current (1.5V version) Iq 2 5 mA TX1117-1.5V, Vin=10V 5
Input voltage Vin 15 18 V 3
Maximum input voltage 18 V 3
Maximum operating junction temperature Tj 150 °C 3
Storage temperature Ts -55 150 °C 3
Lead temperature and time 260 °C 10S 3

CAD (KiCad official)

  • Symbol: ICW1117-1.5
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: icw1117-1-5-etched.step / icw1117-1-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icw1117-1-5.step / icw1117-1-5.glb are the bare package body.

Provenance

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

  • Datasheet: ICW datasheet (10 pp, sha256 0db1c8f8d01a07d1, retrieved 2026-10-22, 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-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