component
JY1117EAX
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Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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JY1117EAX
Shenzhen JingYang · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4
JY1117EAX from Shenzhen JingYang, in a SOT-223-4. 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) | input | A resistor divider from this pin to the VOUT pin and ground sets the output voltage in adjustable mode (ground only for fixed-mode parts). |
| 2 | VOUT | power_out | Regulator output; needs a minimum 0.2uF X7R/X5R ceramic, or a 3.3uF to 100uF electrolytic with 10mOhm to 1Ohm ESR, to ground for stability. |
| 3 | VIN | power_in | Regulator input (absolute max -0.3 to 15 V, operating 2.7 to 12 V) that must always be at least 1.5V higher than VOUT for regulation, with a storage capacitor to ground. |
| 4 | TAB (VOUT) | passive | The package tab is connected to VOUT; the datasheet recommends a 5mm*5mm multilayer PCB copper area for heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOT-223-4 |
| Category | Power Management (PMIC) |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operation Input Voltage | 2.7 | 12 | V | 5 | |||
| Reference Voltage | 1.225 | 1.25 | 1.275 | V | IOUT = 10mA, TJ=25°C, (VIN-OUT)=1.5V | 5 | |
| Line Regulation -XXX | 0.2 | 0.5 | % | IOUT=10mA, VOUT+1.5V< VIN<12V, TJ=25°C (Note 1,2) | 5 | ||
| Load Regulation -ADJ | 0.4 | 1 | % | VIN=2.7V, 10mA≤IOUT≤1A, TJ=25°C (Note 1,2) | 5 | ||
| Dropout Voltage -ADJ/1.2/1.5/1.8/2.5/3.3/5.0 | (VIN-VOUT) | 1.2 | 1.4 | V | IOUT = 1A, ΔVOUT=1%VOUT | 6 | |
| Minimum Load Current -XXX | 5 | 7 | mA | 0°C≤Tj≤125°C | 6 | ||
| Adjust Pin Current -ADJ | 50 | 100 | uA | (VIN-VOUT) = 1.5V, IOUT=10mA | 6 | ||
| Ripple Rejection -XX | 50 | 60 | 70 | dB | F=120Hz, COUT=10μf, 0.2μf, (VIN-VOUT) = 1.5V | 6 | |
| DC Supply Voltage | VIN | -0.3 | 15 | V | 4 | ||
| Operating Junction Temperature Range | Top | -40 | 125 | °C | 4 | ||
| Maximum Junction Temperature | TMJ | 150 | °C | 4 | |||
| Power Dissipation SOT-223 (with 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 | ||
| Current Limit -ADJ/1.2/1.5/1.8/2.5/3.3/5.0 | 1 | A | (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 | ||||
| Thermal Resistance Junction-to-Ambient SOT-223 (heat sink) | TJA | 75 | °C/W | Note4: tab connected to 5mm*5mm PCB copper area | 6 | ||
| Thermal Resistance Junction-to-Ambient SOT-223 (no heat sink) | TJA | 117 | °C/W | No heat sink; no air flow | 6 | ||
| Thermal Resistance Junction-to-Case SOT-223 | TJC | 15 | °C/W | 6 |
CAD (KiCad official)
- Symbol:
JY1117EAX - Footprint:
Package_TO_SOT_SMD:SOT-223 - 3D model: SOT-223-4 (KiCad packages3D, STEP)
- 3D model files:
jy1117eax-etched.step/jy1117eax-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jy1117eax.step/jy1117eax.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen JingYang datasheet (14 pp, sha256
97ed62f40fae69c5, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# JY1117EAX
**Shenzhen JingYang** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4
JY1117EAX from Shenzhen JingYang, in a SOT-223-4. 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) | input | A resistor divider from this pin to the VOUT pin and ground sets the output voltage in adjustable mode (ground only for fixed-mode parts). |
| 2 | VOUT | power_out | Regulator output; needs a minimum 0.2uF X7R/X5R ceramic, or a 3.3uF to 100uF electrolytic with 10mOhm to 1Ohm ESR, to ground for stability. |
| 3 | VIN | power_in | Regulator input (absolute max -0.3 to 15 V, operating 2.7 to 12 V) that must always be at least 1.5V higher than VOUT for regulation, with a storage capacitor to ground. |
| 4 | TAB (VOUT) | passive | The package tab is connected to VOUT; the datasheet recommends a 5mm*5mm multilayer PCB copper area for heat dissipation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOT-223-4 |
| Category | Power Management (PMIC) |
| Pins | 4 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operation Input Voltage | | 2.7 | | 12 | V | | 5 |
| Reference Voltage | | 1.225 | 1.25 | 1.275 | V | IOUT = 10mA, TJ=25°C, (VIN-OUT)=1.5V | 5 |
| Line Regulation -XXX | | | 0.2 | 0.5 | % | IOUT=10mA, VOUT+1.5V< VIN<12V, TJ=25°C (Note 1,2) | 5 |
| Load Regulation -ADJ | | | 0.4 | 1 | % | VIN=2.7V, 10mA≤IOUT≤1A, TJ=25°C (Note 1,2) | 5 |
| Dropout Voltage -ADJ/1.2/1.5/1.8/2.5/3.3/5.0 | (VIN-VOUT) | | 1.2 | 1.4 | V | IOUT = 1A, ΔVOUT=1%VOUT | 6 |
| Minimum Load Current -XXX | | | 5 | 7 | mA | 0°C≤Tj≤125°C | 6 |
| Adjust Pin Current -ADJ | | | 50 | 100 | uA | (VIN-VOUT) = 1.5V, IOUT=10mA | 6 |
| Ripple Rejection -XX | | 50 | 60 | 70 | dB | F=120Hz, COUT=10μf, 0.2μf, (VIN-VOUT) = 1.5V | 6 |
| DC Supply Voltage | VIN | -0.3 | | 15 | V | | 4 |
| Operating Junction Temperature Range | Top | -40 | | 125 | °C | | 4 |
| Maximum Junction Temperature | TMJ | | | 150 | °C | | 4 |
| Power Dissipation SOT-223 (with 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 |
| Current Limit -ADJ/1.2/1.5/1.8/2.5/3.3/5.0 | | | 1 | | A | (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 |
| Thermal Resistance Junction-to-Ambient SOT-223 (heat sink) | TJA | | 75 | | °C/W | Note4: tab connected to 5mm*5mm PCB copper area | 6 |
| Thermal Resistance Junction-to-Ambient SOT-223 (no heat sink) | TJA | | 117 | | °C/W | No heat sink; no air flow | 6 |
| Thermal Resistance Junction-to-Case SOT-223 | TJC | | 15 | | °C/W | | 6 |
## CAD (KiCad official)
- Symbol: `JY1117EAX`
- Footprint: `Package_TO_SOT_SMD:SOT-223`
- 3D model: SOT-223-4 (KiCad packages3D, STEP)
- 3D model files: `jy1117eax-etched.step` / `jy1117eax-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jy1117eax.step` / `jy1117eax.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shenzhen JingYang datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910703886942208) (14 pp, sha256 `97ed62f40fae69c5`, retrieved 2026-10-17, 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](docs/jy1117eax-datasheet.pdf)