TPS61040DBVR

@@ -0,0 +1,52 @@+# TPS61040DBVR++**Texas Instruments** · DC-DC Converters · SOT-23-5++TPS61040DBVR from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SW | input | Switch pin connected to the drain of the internal power MOSFET. Connect the inductor and the Schottky diode to this pin. Maximum switch voltage 30V; internal MOSFET current limit 400mA (TPS61040), RDS(on) typ 600mΩ. |+| 2 | GND | power_in | Device ground reference. All voltages are referenced to this pin. |+| 3 | FB | input | Feedback pin. Connect to the external resistor divider from VOUT to program the desired output voltage. Internal reference (VFB) is 1.233V typical (1.208V-1.258V). |+| 4 | EN | input | Enable pin. Pulling to ground forces the device into shutdown mode (supply current <1µA). Must not be left floating and needs to be terminated. VIH ≥ 1.3V, VIL ≤ 0.4V. |+| 5 | VIN | power_in | Supply voltage pin. Input voltage range 1.8V to 6V (absolute max 7V). Bypass with 4.7µF input capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `TPS61040DBVRDBV`+- `TPS61040DBVRDBVR`+- `TPS61040DBVRDBVT`+- `TPS61040DBVRDDC`+- `TPS61040DBVRDDCR`+- `TPS61040DBVRDDCT`+- `TPS61040DBVRDRV`+- `TPS61040DBVRDRVR`+- `TPS61040DBVRDRVT`++## CAD (KiCad official)++- Symbol: `TPS61040DBVR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tps61040.pdf) (39 pp, sha256 `6cdca27bfce2aa90`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps61040dbvr-datasheet.pdf)

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