# LMR50410XFDBVR

**Texas Instruments** · DC-DC Converters · SOT-23-6

LMR50410XFDBVR from Texas Instruments, in a SOT-23-6. 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 | CB | output | Bootstrap capacitor connection for high-side FET driver; connect 100-nF capacitor from this pin to the SW pin. |
| 2 | GND | power_in | Power ground terminal connected to low-side FET source internally; connect to system ground and ground side of input and output bypass capacitors with the shortest possible path to input capacitor. |
| 3 | FB | input | Feedback input to set output voltage via resistor divider; never short to ground during operation. |
| 4 | EN | input | Precision enable input (high = on, low = off, do not float) allowing adjustable UVLO via external resistor divider or tying to VIN. |
| 5 | VIN | power_in | Supply input to internal bias LDO and high-side FET; connect to input supply and bypass capacitors which must be directly connected to this pin and GND. |
| 6 | SW | output | Switching output internally connected to high-side FET source and low-side FET drain; connect to power inductor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `LMR50410XFDBVR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lmr50410xfdbvr-etched.step` / `lmr50410xfdbvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmr50410xfdbvr.step` / `lmr50410xfdbvr.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/lmr50410) (35 pp, sha256 `fa9b9488d6570590`, 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/lmr50410xfdbvr-datasheet.pdf)