# AMS1117-1.8RG

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

AMS1117-1.8RG from HANSCHIP semiconductor, 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 versions and adjust pin for the ADJ version; the datasheet gives no numeric limit for this pin. |
| 2 | VOUT | output | Regulated output voltage of 1.8V for the AMS1117-1.8 version, rated for up to 800mA output current with a dropout of 1.2V at 800mA. |
| 3 | VIN | power_in | Input operating voltage; recommended maximum is 12V and absolute maximum is 15V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| 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 (25°C) | VOUT | 1.773 | 1.8 | 1.827 | V | IOUT=10mA, VIN=3.8V, TJ=25°C, 0≤IOUT≤1A, 3.2V≤VIN≤10V | 4 |
| Output voltage (full operating temperature range) | VOUT | 1.746 | 1.8 | 1.854 | V | IOUT=10mA, VIN=3.8V, 0≤IOUT≤1A, 3.2V≤VIN≤10V | 4 |
| Line regulation | Rline |  | 9 | 18 | mV | VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj,IOUT=10mA | 4 |
| Load regulation | Rload |  | 10 | 18 | mV | 10mA≤IOUT≤800mA, VOUT=Fixed/Adj | 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 |
| Current limit | Ilimit | 2.1 |  | 2.5 | A |  | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 15 | V |  | 3 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Operating junction temperature (absolute maximum) | TJ |  |  | 150 | °C |  | 3 |
| Lead temperature | TLead |  |  | 245 | °C | soldering 10 s | 3 |
| ESD capability (minimum) | ESD | 2000 |  |  | V |  | 3 |
| Input voltage (recommended) | VIN |  |  | 12 | V |  | 3 |
| Operating junction temperature range (recommended) | TJ | -40 |  | 125 | °C |  | 3 |

## CAD (KiCad official)

- Symbol: `AMS1117-1.8RG`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `ams1117-1-8rg-etched.step` / `ams1117-1-8rg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ams1117-1-8rg.step` / `ams1117-1-8rg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HANSCHIP semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757320784530685952) (12 pp, sha256 `eb1f648ce5a0d54d`, 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/ams1117-1-8rg-datasheet.pdf)