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JY1103-L180QX

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Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN-4-EP(1x1). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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JY1103-L180QX

Shenzhen JingYang · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4-EP(1x1)

JY1103-L180QX from Shenzhen JingYang, in a DFN-4-EP(1x1). 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 VOUT power_out Regulated output voltage, selectable 0.8V to 5.0V in 0.05V steps, with up to 300mA maximum output current and a 1uF ceramic output capacitor.
2 GND power_in Power ground (VSS) reference for the regulator.
3 EN input Chip enable input; pulling EN to VSS turns the output off and discharges VOUT through the internal switch.
4 VIN power_in Voltage input, operating range 1.6V to 6.0V, with a 1uF input capacitor.
5 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Shenzhen JingYang
Package DFN-4-EP(1x1)
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: JY1103-L180QX
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN-4-EP(1x1) (KiCad packages3D, STEP)
  • 3D model files: jy1103-l180qx-etched.step / jy1103-l180qx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jy1103-l180qx.step / jy1103-l180qx.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen JingYang datasheet (22 pp, sha256 e1046b267cca00e5, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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