# TPS79516DCQR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6

TPS79516DCQR from Texas Instruments, in a SOT-223-6. 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 | EN | input | Enable input, active high and compatible with standard and low-voltage TTL-CMOS levels; drive it low to put the regulator in shutdown, or tie it to IN if shutdown is not needed. |
| 2 | IN | power_in | Input supply to the regulator; recommended VIN is 2.7 V to 5.5 V for the older chip and 2.7 V to 6.0 V for the newer chip. |
| 3 | GND | power_in | Regulator ground pin. |
| 4 | OUT | power_out | Regulator output; a ceramic output capacitor of at least 1 µF from OUT to GND is required for stability. |
| 5 | NR/NC | passive | On the older chip (fixed-voltage versions only) this is the noise-reduction pin, where an external bypass capacitor not exceeding 0.1 µF lowers output noise; on the newer chip this pin is not internally connected (N/C). |
| 6 | GND | power_in | Tab/heat-spreader, electrically connected to GND; solder it to a large ground copper area for thermal performance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPS79516DCQR`
- Footprint: `Package_TO_SOT_SMD:SOT-223-6`
- 3D model: SOT-223-6 (KiCad packages3D, STEP)
- 3D model files: `tps79516dcqr-etched.step` / `tps79516dcqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps79516dcqr.step` / `tps79516dcqr.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/tps795) (43 pp, sha256 `62643c6f836d43b8`, retrieved 2026-10-11, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/tps79516dcqr-datasheet.pdf)