# TSM1014AIDT

**STMicroelectronics** · Voltage References · SOIC-8

TSM1014AIDT from STMicroelectronics, 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 | VRef | power_in | Voltage reference output (fixed 1.25 V, 0.5% precision for the A version), max output current 2.5 mA. |
| 2 | Cc- | input | Negative input of the current control operational amplifier, directly accessible for external compensation. |
| 3 | Cc+ | input | Positive input of the current control operational amplifier, input common mode range 0 to VCC-1.5 V. |
| 4 | CV- | input | Negative input of the voltage control operational amplifier, directly accessible for external compensation. |
| 5 | CVOUT | output | Current-sinking output of the voltage control operational amplifier, ORed with the current control output and accessible for external compensation. |
| 6 | GND | power_in | Ground line, 0 V reference for all voltages. |
| 7 | CCOUT | output | Current-sinking output of the current control operational amplifier, ORed with the voltage control output and accessible for external compensation. |
| 8 | VCC | power_in | Power supply line, operating range 4.5 V to Vz (internal Zener clamp, 28 V max at 50 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Total supply current excl. voltage reference | ICC |  | 100 | 180 | µA | VCC = 18 V, no load, Tmin < Tamb < Tmax | 4 |
| VCC clamp voltage | Vz |  | 28 |  | V | ICC = 50 mA | 4 |
| Input offset voltage + voltage reference (TSM1014A), 25°C | VRef + Vio |  | 1.25 | 1.258 | V | Tamb = 25 °C | 4 |
| Input offset voltage + voltage reference (TSM1014A), over temp | VRef + Vio |  |  | 1.267 | V | Tmin ≤ Tamb ≤ Tmax | 4 |
| Op amp 2 input offset voltage (TSM1014A), 25°C | Vio |  | 0.5 | 2 | mV | Tamb = 25 °C | 4 |
| Op amp 2 input offset voltage (TSM1014A), over temp | Vio |  |  | 3 | mV | Tmin ≤ Tamb ≤ Tmax | 4 |
| Input bias current, 25°C | Iib |  | 20 | 150 | nA | Tamb = 25 °C | 4 |
| Input bias current, over temp | Iib |  | 50 | 200 | nA | Tmin ≤ Tamb ≤ Tmax | 4 |
| Supply voltage rejection ratio | SVR | 65 | 100 |  | dB | VCC = 4.5 V to 28 V | 4 |
| Common mode rejection ratio, 25°C | CMR | 70 | 85 |  | dB | Tamb = 25 °C | 4 |
| Common mode rejection ratio, over temp | CMR | 60 |  |  | dB | Tmin ≤ Tamb ≤ Tmax | 4 |
| Input common mode voltage range (lower limit) | Vicm | 0 |  |  | V | upper limit VCC - 1.5 V | 4 |
| Transconductance gain, sink current only | Gm | 0.5 | 1 |  | mA/mV | Tamb = 25 °C | 4 |
| Low output voltage at 5 mA sinking current | Vol |  | 250 | 400 | mV | Tmin ≤ Tamb ≤ Tmax | 4 |
| Output short-circuit current, 25°C | Ios | 6 | 10 |  | mA | Tamb = 25 °C, output to (VCC - 0.6 V), sink only | 4 |
| Output short-circuit current, over temp | Ios | 5 |  |  | mA | Tmin ≤ Tamb ≤ Tmax | 4 |
| Reference input voltage (0.5%), 25°C | VRef | 1.244 | 1.25 | 1.256 | V | TSM1014A, Tamb = 25 °C | 5 |
| Reference input voltage (0.5%), over temp | VRef | 1.237 | 1.25 | 1.261 | V | TSM1014A, Tmin ≤ Tamb ≤ Tmax | 5 |
| Reference voltage deviation over temperature range | VRef |  | 20 | 30 | mV | Tmin ≤ Tamb ≤ Tmax | 5 |
| Reference voltage deviation over VCC range | RegLine |  |  | 20 | mV | Iload = 1 mA | 5 |
| Reference voltage deviation over output current | RegLoad |  |  | 10 | mV | VCC = 18 V, 0 < Iload < 2.5 mA | 5 |
| Input offset voltage drift | DVio |  | 7 |  | µV/°C |  | 4 |
| DC supply voltage | VCC | 4.5 |  |  | V | 4.5 to Vz | 3 |
| Operational temperature | Toper | -40 |  | 105 | °C |  | 3 |
| DC supply voltage (abs max) | VCC | -0.3 |  |  | V | -0.3 V to Vz, 50 mA =< ICC | 3 |
| Input voltage | Vi | -0.3 |  |  | V | -0.3 to VCC | 3 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 3 |
| Junction temperature | Tj |  |  | 150 | °C |  | 3 |
| Voltage reference output current | Iref |  |  | 2.5 | mA |  | 3 |
| Electrostatic discharge | ESD |  |  | 2 | kV | HBM | 3 |
| Thermal resistance junction to ambient | Rthja |  |  | 175 | °C/W | SO8 package | 3 |

## CAD (KiCad official)

- Symbol: `TSM1014AIDT`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tsm1014aidt-etched.step` / `tsm1014aidt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tsm1014aidt.step` / `tsm1014aidt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/tsm1014aidt.pdf) (14 pp, sha256 `992a43098da5b471`, retrieved 2026-10-22, 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/tsm1014aidt-datasheet.pdf)