# LM1117MP-1.5

**HGSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

LM1117MP-1.5 from HGSEMI, 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 | GND/ADJ | power_in | Ground for the fixed-output LM1117-1.5 variant (labelled ADJ only in the adjustable version); the datasheet gives no pin-specific electrical limits. |
| 2 | VOUT | power_out | Regulated output voltage pin; the fixed 1.5 V version is specified for 10 mA to 1 A load current. |
| 3 | VIN | power_in | Input supply pin; the recommended input voltage is 15 V maximum and the absolute maximum is 20 V, with a minimum of VOUT plus the specified dropout (about 1.2 V at 1 A). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOT-223 |
| 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 (LM1117-1.5, 25 C) | VOUT | 1.485 | 1.5 | 1.515 | V | IOUT=10mA, VIN=3.5V, TJ=25℃ | 4 |
| Output voltage (LM1117-1.5, full range) | VOUT | 1.47 | 1.5 | 1.53 | V | 10mA≤IOUT≤1A, 3.0V≤VIN≤10V | 4 |
| Line regulation | Rline |  | 3 | 7 | mV | VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj, IOUT=10mA | 4 |
| Load regulation | Rload |  | 6 | 12 | mV | 10mA≤IOUT≤ 1A,VOUT=Fixed/Adj | 4 |
| Dropout voltage | Vdrop |  | 1 | 1.2 | V | IOUT=100mA | 4 |
| Dropout voltage | Vdrop |  | 1.05 | 1.25 | V | IOUT=500mA | 4 |
| Dropout voltage | Vdrop |  | 1.1 | 1.3 | V | IOUT=1A | 4 |
| Quiescent current | Iq |  | 5 | 10 | mA | 4.25V≤VIN≤ 6.5V | 4 |
| Ripple rejection | PSRR | 60 | 75 |  | dB | fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP | 4 |
| Adjust pin current | Iadj |  | 60 | 120 | µA |  | 4 |
| Adjust pin current change |  |  | 0.2 | 5 | µA | 0≤ IOUT≤1A, 1.4V ≤VIN-VOUT≤10V | 4 |
| Current limit | Ilimit | 1.2 | 1.4 | 1.5 | A |  | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 20 | V |  | 3 |
| Lead temperature (soldering, 10 s) | TLead |  |  | 260 | ℃ | Soldering, 10 s | 3 |
| Operating junction temperature (absolute maximum) | TJ |  |  | 150 | ℃ |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | ℃ |  | 3 |
| ESD capability | ESD | 2000 |  |  | V | Minimum ESD capability as printed | 3 |
| Input voltage (recommended) | VIN |  |  | 15 | V |  | 3 |
| Operating junction temperature range (MP variant) | TJ | 0 |  | 125 | ℃ | LM1117MP-XX | 3 |
| Junction-to-ambient thermal resistance (SOT-223, no heatsink) | θJA |  | 120 |  | ℃/W | SOT-223, 无散热片 (no heatsink) | 4 |

## CAD (KiCad official)

- Symbol: `LM1117MP-1.5`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `lm1117mp-1-5-etched.step` / `lm1117mp-1-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm1117mp-1-5.step` / `lm1117mp-1-5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757064070568648704) (9 pp, sha256 `1476410f038c4822`, retrieved 2026-10-18, 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-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/lm1117mp-1-5-datasheet.pdf)