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JY1117E15AX

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Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT223-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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JY1117E15AX

Shenzhen JingYang · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT223-3L

JY1117E15AX from Shenzhen JingYang, in a SOT223-3L. 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 ADJ (GND) passive A resistor divider from this pin to the VOUT pin and ground sets the output voltage on the adjustable version, and the pin is ground only for fixed-mode versions.
2 VOUT power_out The output of the regulator, which must be bypassed with a minimum 0.2uF X7R or X5R ceramic capacitor, or a 3.3uF to 100uF electrolytic capacitor with 10mΩ ≤ ESR ≤ 1Ω, to ground to ensure stability.
3 VIN power_in The input pin of the regulator, which must always be at least 1.5V higher than VOUT for proper regulation and is typically decoupled with a large storage capacitor to ground.

Key specifications

Parameter Value
Manufacturer Shenzhen JingYang
Package SOT223-3L
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
Output voltage (1.5V fixed) VOUT 1.47 1.5 1.53 V IOUT = 10mA, TJ = 25°C, 3V≤VIN≤12V 5
Reference voltage VREF 1.225 1.25 1.275 V IOUT = 10mA, TJ=25°C, (VIN-OUT)=1.5V 5
Line regulation 0.2 0.5 % IOUT =10mA, VOUT+1.5V< VIN<12V, TJ=25°C (Note 1,2) 5
Load regulation (1.5V fixed) 12 15 mV VIN=3V, 10mA≤IOUT≤1A, TJ=25°C (Note 1,2) 5
Dropout voltage (VIN-VOUT) VIN-VOUT 1.2 1.4 V IOUT = 1A, ΔVOUT=1%VOUT 6
Current limit 1 A (VIN-VOUT) = 1.5V 6
Minimum load current 5 7 mA 0°C≤TJ≤125°C 6
Ripple rejection 50 60 70 dB F=120Hz, COUT=10μf, 0.2μf, (VIN-VOUT) = 1.5V 6
Temperature stability 0.5 % IOUT=10mA 6
Thermal shutdown temperature 145 °C Over temperature protect 6
Thermal shutdown hysteresis 40 °C 6
Lead temperature 260 °C 6
Operation input voltage VIN 2.7 12 V 5
Operating junction temperature range TJ -40 125 °C 4
DC supply voltage VIN -0.3 15 V 4
Maximum junction temperature TMJ 150 °C 4
Power dissipation SOT-223 (heat sink) PD 1300 mW Heat sink area 5mm*5mm, TA=25°C, TJ=125°C 4
Power dissipation SOT-223 (no heat sink) PD 850 mW No heat sink, no air flow, TA=25°C, TJ=125°C 4
Storage temperature TST -65 150 °C 4
Thermal resistance junction-to-ambient SOT-223 θJA 75 °C/W Note4: tab connected to 5mm*5mm PCB copper area 6
Thermal resistance junction-to-ambient SOT-223 (no heat sink) θJA 117 °C/W No heat sink, no air flow 6
Thermal resistance junction-to-case SOT-223 θJC 15 °C/W 6

CAD (KiCad official)

  • Symbol: JY1117E15AX
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT223-3L (KiCad packages3D, STEP)
  • 3D model files: jy1117e15ax-etched.step / jy1117e15ax-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jy1117e15ax.step / jy1117e15ax.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen JingYang datasheet (14 pp, sha256 9c67f0095951173b, retrieved 2026-10-17, tier: lcsc)
  • 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