# TL432ASF

**HTC Korea TAEJIN Tech** · Voltage Reference · SOT-23

TL432ASF from HTC Korea TAEJIN Tech, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | REF | input | Reference input. The internal error amplifier compares this pin against the 1.24V internal bandgap; when driven above 1.24V the cathode sinks current to regulate. Typical reference input current 0.25uA. |
| 2 | A | power_in | Anode. Ground return for the shunt regulator; cathode current flows out of this pin to the negative supply. |
| 3 | K | power_in | Cathode. Input supply / regulated node; sinks 0.1mA to 100mA to hold VKA = VREF (or a programmed multiple set by an external divider). Max VKA = 20V (absolute), 18V recommended. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `TL432ASF`
- `TL432ASFCSF`
- `TL432ASFGCSF`
- `TL432ASFGASF`
- `TL432ASFTA`
- `TL432ASFCTA`
- `TL432ASFATA`

## CAD (KiCad official)

- Symbol: `TL432ASF`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `tl432asf-etched.step` / `tl432asf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl432asf.step` / `tl432asf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HTC Korea TAEJIN Tech datasheet](docs/tl432asf-datasheet.pdf) (7 pp, sha256 `9e18c41a9344a9ee`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tl432asf-datasheet.pdf)