# LT1019AIS8-5#PBF

**Analog Devices** · Voltage References · SOIC-8

LT1019AIS8-5#PBF from Analog Devices, in a SOIC-8. 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 | DNC | unconnected | Internally connected; do not connect externally. |
| 2 | INPUT | power_in | Supply input; absolute maximum 40V, with minimum input/output differential of 0.9V typ to 1.1V max at IOUT ≤ 1mA. |
| 3 | TEMP | output | Temperature output voltage proportional to absolute temperature (about 2.1mV/°C, roughly 620mV at room temperature), absolute maximum 5V. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | TRIM | passive | Output voltage trim pin (±30V absolute maximum), with LT1019-5 trim range of +5%, -13%. |
| 6 | OUTPUT | output | Reference output (5V for LT1019-5) that can sink and source up to 10mA, with absolute maximum output voltage of 16V. |
| 7 | DNC | unconnected | Internally connected; do not connect externally. |
| 8 | DNC | unconnected | Internally connected; do not connect externally. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |

## 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 Tolerance |  |  | 0.02 | 0.05 | % | VIN = 15V, IOUT = 0, TA = 25°C | 3 |
| Output Voltage Temperature Coefficient | TC |  | 3 | 10 | ppm/°C | LT1019I (-40°C to 85°C) | 3 |
| Line Regulation | ΔVOUT/ΔVIN |  | 0.5 | 3 | ppm/V | (VOUT + 1.5V) ≤ VIN ≤ 40V | 3 |
| Line Regulation (full temp range) | ΔVOUT/ΔVIN |  | 1 | 5 | ppm/V | (VOUT + 1.5V) ≤ VIN ≤ 40V, over full temperature range | 3 |
| Ripple Rejection | RR | 90 | 110 |  | dB | 50Hz ≤ f ≤ 400Hz | 3 |
| Ripple Rejection (full temp range) | RR | 84 |  |  | dB | 50Hz ≤ f ≤ 400Hz, over full temperature range | 3 |
| Load Regulation, Series Mode | ΔVOUT/ΔIOUT |  | 0.02 | 0.05 | mV/mA (Ω) | 0 ≤ IOUT ≤ 10mA (Note 5) | 4 |
| Load Regulation, Series Mode (full temp range) | ΔVOUT/ΔIOUT |  |  | 0.08 | mV/mA (Ω) | 0 ≤ IOUT ≤ 10mA, over full temperature range (Notes 4, 5) | 4 |
| Load Regulation, Shunt Mode (5V) |  |  | 0.1 | 0.4 | mV/mA (Ω) | 1mA ≤ ISHUNT ≤ 10mA (Notes 5, 6), 2.5V, 4.5V, 5V, over full temperature range | 4 |
| Thermal Regulation |  |  | 0.1 | 0.5 | ppm/mW | ΔP = 200mW, t = 50ms (Note 7) | 4 |
| Quiescent Current | IQ |  | 0.65 | 1 | mA |  | 4 |
| Quiescent Current (full temp range) | IQ |  |  | 1.3 | mA | Series Mode, over full temperature range | 4 |
| Minimum Shunt Current |  |  | 0.5 | 0.8 | mA | (Note 8), over full temperature range | 4 |
| Minimum Input/Output Voltage Differential |  |  | 0.9 | 1.1 | V | IOUT ≤ 1mA, over full temperature range | 4 |
| Minimum Input/Output Voltage Differential |  |  |  | 1.3 | V | IOUT = 10mA, over full temperature range | 4 |
| Trim Range LT1019-5 |  | -13 | 3.5 | 5 | % | LT1019-5 | 4 |
| Short-Circuit Current | ISC | 15 | 25 | 50 | mA | 2V ≤ VIN ≤ 35V | 4 |
| Short-Circuit Current (output to GND) | ISC | 10 |  |  | mA | Output Connected to GND, over full temperature range | 4 |
| Output Voltage Noise | en |  | 2.5 | 4 | ppm (RMS) | 10Hz ≤ f ≤ 1kHz (Note 10) | 4 |
| Output Voltage Noise | en |  | 2.5 |  | ppm (P-P) | 0.1Hz ≤ f ≤ 10Hz (Note 10) | 4 |
| Input Voltage |  |  |  | 40 | V |  | 2 |
| Output Voltage |  |  |  | 16 | V | LT1019-5, LT1019-10 (Note 2) | 2 |
| Trim Pin Voltage |  | -30 |  | 30 | V |  | 2 |
| Temp Pin Voltage |  |  |  | 5 | V |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C | (Note 11) | 2 |
| Lead Temperature |  |  |  | 300 | °C | Soldering, 10 sec | 2 |
| Specified Temperature Range (Industrial) |  | -40 |  | 85 | °C | Industrial | 2 |
| Maximum Junction Temperature | TJMAX |  |  | 100 | °C | Plastic package listing (N8/S8) | 2 |
| Thermal Resistance Junction to Ambient | θJA |  | 130 |  | °C/W | Plastic package listing (N8/S8) | 2 |

## CAD (KiCad official)

- Symbol: `LT1019AIS8-5#PBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lt1019ais8-5-pbf-etched.step` / `lt1019ais8-5-pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt1019ais8-5-pbf.step` / `lt1019ais8-5-pbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/1019fd.pdf) (12 pp, sha256 `ae02b48310f3b609`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/lt1019ais8-5-pbf-datasheet.pdf)