component
LM1117MPX-ADJNOPB
Public Made by Adomby adom
onsemi Linear Voltage Regulators (LDO), SOT-223. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM1117MPX-ADJNOPB
onsemi · Linear Voltage Regulators (LDO) · SOT-223
LM1117MPX-ADJNOPB from onsemi, in a SOT-223. 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 | Adjust/Ground | power_in | Adjust/Ground pin: on the adjustable version it sets the output voltage through the external divider R1 and R2, with the 1.25 V reference held across R1, and its adjust pin current stays low and nearly constant with load current. |
| 2 | Output | power_out | Output pin, electrically connected to the heatsink tab; a minimum output capacitance of 4.7 µF with ESR from 33 mΩ (typ) to 2.2 Ω is required for stability. |
| 3 | Input | power_in | Input pin with a maximum input voltage of 20 V per the Maximum Ratings, and a 10 µF ceramic or tantalum input bypass capacitor is recommended for most applications. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-223 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | Vin | 20 | V | 2 | |||
| Maximum Die Junction Temperature Range | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Operating Ambient Temperature Range (LM1117) | TA | 0 | 125 | °C | LM1117 variant | 2 | |
| Thermal Resistance, Junction-to-Ambient, Minimum Size Pad | RJA | 160 | °C/W | Minimum size pad | 2 | ||
| Thermal Resistance, Junction-to-Case | RJC | 15 | °C/W | 2 | |||
| Reference Voltage, Adjustable Output Devices | Vref | 1.238 | 1.25 | 1.262 | V | Vin-Vout = 2.0 V, Iout = 10 mA, TA = 25°C | 3 |
| Reference Voltage, Adjustable Output Devices | Vref | 1.225 | 1.25 | 1.27 | V | Vin-Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA (Note 4) | 3 |
| Line Regulation Adjustable | Regline | 0.04 | 0.1 | % | Vin = 2.75 V to 16.25 V, Iout = 10 mA | 3 | |
| Load Regulation Adjustable | Regline | 0.2 | 0.4 | % | Iout = 10 mA to 800 mA, Vin = 4.25 V | 3 | |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | 0.95 | 1.1 | V | Iout = 100 mA | 3 | |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | 1.01 | 1.15 | V | Iout = 500 mA | 3 | |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | 1.07 | 1.2 | V | Iout = 800 mA | 3 | |
| Output Current Limit | Iout | 1000 | 1500 | 2200 | mA | Vin−Vout = 5.0 V, TA = 25°C, Note 6 | 3 |
| Minimum Required Load Current for Regulation, Adjustable Output Devices | IL(min) | 0.8 | 5 | mA | Vin = 15 V | 3 | |
| Ripple Rejection Adjustable | RR | 67 | 73 | dB | Vin−Vout = 6.4 V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave | 3 | |
| Adjustment Pin Current | Iadj | 52 | 120 | µA | Vin = 11.25 V, Iout = 800 mA | 3 | |
| Adjust Pin Current Change | Iadj | 0.4 | 5 | µA | Vin−Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA | 3 | |
| Thermal Regulation | 0.01 | 0.1 | %/W | TA = 25°C, 30 ms Pulse | 3 | ||
| Temperature Stability | ST | 0.5 | % | 3 | |||
| Long Term Stability | St | 0.3 | % | TA = 25°C, 1000 Hrs End Point Measurement | 3 | ||
| RMS Output Noise | N | 0.003 | %Vout | f = 10 Hz to 10 kHz | 3 |
CAD (KiCad official)
- Symbol:
LM1117MPX-ADJNOPB - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
lm1117mpx-adjnopb-etched.step/lm1117mpx-adjnopb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm1117mpx-adjnopb.step/lm1117mpx-adjnopb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (13 pp, sha256
d4a212fd6b43e65e, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# LM1117MPX-ADJNOPB
**onsemi** · Linear Voltage Regulators (LDO) · SOT-223
LM1117MPX-ADJNOPB from onsemi, in a SOT-223. 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 | Adjust/Ground | power_in | Adjust/Ground pin: on the adjustable version it sets the output voltage through the external divider R1 and R2, with the 1.25 V reference held across R1, and its adjust pin current stays low and nearly constant with load current. |
| 2 | Output | power_out | Output pin, electrically connected to the heatsink tab; a minimum output capacitance of 4.7 µF with ESR from 33 mΩ (typ) to 2.2 Ω is required for stability. |
| 3 | Input | power_in | Input pin with a maximum input voltage of 20 V per the Maximum Ratings, and a 10 µF ceramic or tantalum input bypass capacitor is recommended for most applications. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-223 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | Vin | | | 20 | V | | 2 |
| Maximum Die Junction Temperature Range | TJ | -55 | | 150 | °C | | 2 |
| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |
| Operating Ambient Temperature Range (LM1117) | TA | 0 | | 125 | °C | LM1117 variant | 2 |
| Thermal Resistance, Junction-to-Ambient, Minimum Size Pad | RJA | | | 160 | °C/W | Minimum size pad | 2 |
| Thermal Resistance, Junction-to-Case | RJC | | | 15 | °C/W | | 2 |
| Reference Voltage, Adjustable Output Devices | Vref | 1.238 | 1.25 | 1.262 | V | Vin-Vout = 2.0 V, Iout = 10 mA, TA = 25°C | 3 |
| Reference Voltage, Adjustable Output Devices | Vref | 1.225 | 1.25 | 1.27 | V | Vin-Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA (Note 4) | 3 |
| Line Regulation Adjustable | Regline | | 0.04 | 0.1 | % | Vin = 2.75 V to 16.25 V, Iout = 10 mA | 3 |
| Load Regulation Adjustable | Regline | | 0.2 | 0.4 | % | Iout = 10 mA to 800 mA, Vin = 4.25 V | 3 |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | | 0.95 | 1.1 | V | Iout = 100 mA | 3 |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | | 1.01 | 1.15 | V | Iout = 500 mA | 3 |
| Dropout Voltage (Measured at Vout − 100 mV) | Vin−Vout | | 1.07 | 1.2 | V | Iout = 800 mA | 3 |
| Output Current Limit | Iout | 1000 | 1500 | 2200 | mA | Vin−Vout = 5.0 V, TA = 25°C, Note 6 | 3 |
| Minimum Required Load Current for Regulation, Adjustable Output Devices | IL(min) | | 0.8 | 5 | mA | Vin = 15 V | 3 |
| Ripple Rejection Adjustable | RR | 67 | | 73 | dB | Vin−Vout = 6.4 V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave | 3 |
| Adjustment Pin Current | Iadj | | 52 | 120 | µA | Vin = 11.25 V, Iout = 800 mA | 3 |
| Adjust Pin Current Change | Iadj | | 0.4 | 5 | µA | Vin−Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA | 3 |
| Thermal Regulation | | | 0.01 | 0.1 | %/W | TA = 25°C, 30 ms Pulse | 3 |
| Temperature Stability | ST | | 0.5 | | % | | 3 |
| Long Term Stability | St | | 0.3 | | % | TA = 25°C, 1000 Hrs End Point Measurement | 3 |
| RMS Output Noise | N | | 0.003 | | %Vout | f = 10 Hz to 10 kHz | 3 |
## CAD (KiCad official)
- Symbol: `LM1117MPX-ADJNOPB`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `lm1117mpx-adjnopb-etched.step` / `lm1117mpx-adjnopb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm1117mpx-adjnopb.step` / `lm1117mpx-adjnopb.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/lm1117mpx-adjnopb-d.pdf) (13 pp, sha256 `d4a212fd6b43e65e`, retrieved 2026-10-28, tier: manufacturer)
- **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](docs/lm1117mpx-adjnopb-datasheet.pdf)