# TPS62821DLCR

**Texas Instruments** · DC-DC Converters · VSON-8(1.5x2)

TPS62821DLCR from Texas Instruments, in a VSON-8(1.5x2). 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; high enables operation, low disables; do not leave floating. |
| 2 | FB | input | Output voltage feedback input; connect resistive voltage divider to set output voltage. |
| 3 | AGND | power_in | Analog signal ground, internally connected to PGND, can be left floating. |
| 4 | NC | unconnected | Internally not connected; can be connected to VOUT, GND, or left floating. |
| 5 | PGND | power_in | Power supply ground. |
| 6 | SW | output | Switch node connected to internal high-side and low-side MOSFET switches; conducts alternating high currents. |
| 7 | VIN | power_in | Supply voltage input, operating range 2.4V to 5.5V. |
| 8 | PG | output | Power good open-drain output with high impedance when output voltage is regulated and low when out of regulation; if unused, leave floating or connect to GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSON-8(1.5x2) |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TPS62821DLCR`
- Footprint: `Package_SON:VSON-8_1.5x2mm_P0.5mm`
- 3D model: VSON-8(1.5x2) (KiCad packages3D, STEP)
- 3D model files: `tps62821dlcr-etched.step` / `tps62821dlcr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps62821dlcr.step` / `tps62821dlcr.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/ds/symlink/tps62822.pdf) (31 pp, sha256 `68d4e1472bb48694`, retrieved 2026-10-01, 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-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/tps62821dlcr-datasheet.pdf)