# TPS54232D

**Texas Instruments** · DC-DC Converters · SOIC-8

TPS54232D from Texas Instruments, 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 | BOOT | output | Bootstrap capacitor connection (0.1-μF required between BOOT and PH); forces high-side MOSFET off if voltage falls below minimum until refreshed. |
| 2 | VIN | power_in | Input supply voltage, 3.5 V to 28 V. |
| 3 | EN | input | Enable pin; pull below 1.25 V to disable, float to enable; supports programmable input undervoltage lockout via two resistors. |
| 4 | SS | input | Slow start pin; external capacitor sets output rise time. |
| 5 | VSENSE | input | Inverting node of the gm error amplifier. |
| 6 | COMP | output | Error amplifier output and PWM comparator input; connect frequency compensation components. |
| 7 | GND | power_in | Ground. |
| 8 | PH | output | Source of the internal high-side power MOSFET. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Supply Chip |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TPS54232D`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tps54232d-etched.step` / `tps54232d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps54232d.step` / `tps54232d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps54232) (35 pp, sha256 `fddb96860ec48899`, retrieved 2026-10-05, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/tps54232d-datasheet.pdf)