# LP38853S-ADJ

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-7

LP38853S-ADJ from Texas Instruments, in a TO-263-7. 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 | SS | output | Soft-start capacitor connection, used to control the rise time of VOUT at turnon. |
| 2 | EN | input | Device enable, High = On, Low = Off; the datasheet gives the EN voltage range as 0 to VBIAS. |
| 3 | IN | input | The unregulated voltage input; the datasheet limits VIN to no more than the lower of VBIAS or 4.5 V. |
| 4 | GND | power_in | Ground pin. |
| 5 | ADJ | output | The feedback connection used to set the output voltage, with adjustable VOUT range of 0.8 V to 1.8 V. |
| 6 | OUT | output | The regulated output voltage. |
| 7 | BIAS | input | The supply for the internal control and reference circuitry, specified at 3 V to 5.5 V. |
| 8 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-263-7 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LP38853S-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`
- 3D model: TO-263-7 (KiCad packages3D, STEP)
- 3D model files: `lp38853s-adj-etched.step` / `lp38853s-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp38853s-adj.step` / `lp38853s-adj.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/lp38853) (34 pp, sha256 `e20037b18b97e456`, retrieved 2026-10-11, tier: lcsc)
- **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/lp38853s-adj-datasheet.pdf)