TPS73733DCQR

@@ -0,0 +1,52 @@+# TPS73733DCQR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6++TPS73733DCQR from Texas Instruments, in a SOT-223-6. 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 | IN | power_in | Regulator input supply. Accepts 2.2V to 5.5V (absolute max 6.0V). Bypass to GND with a low-ESR ceramic capacitor close to the pin. |+| 2 | OUT | power_out | Regulated 3.3V output, up to 1A. Requires a 1.0µF or larger ceramic output capacitor for stability. Dropout is ~130mV typ at 1A. |+| 3 | GND | power_in | Device ground reference. Tab (pin 6) is also GND and should be tied to this net through the PCB copper for thermal dissipation. |+| 4 | NR/FB | input | On fixed-output versions (TPS73733) this pin is the noise-reduction (NR) node - an optional bypass capacitor to GND lowers output noise. On the adjustable TPS73701 the same pin becomes the feedback (FB) input from an external R1/R2 divider (V_FB internal reference ≈ 1.198-1.210V). |+| 5 | EN | input | Enable input, active high. V_EN(HI) ≥ 1.7V enables the regulator; V_EN(LO) ≤ 0.5V forces shutdown (I_SHDN ≈ 20nA typ). Do not float. Absolute max −0.3V to +6.0V. |+| 6 | GND (TAB) | power_in | SOT-223 metal tab, internally tied to GND. Solder to a copper ground pour for thermal dissipation; must be electrically bonded to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-223-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TPS73733DCQRDCQ`+- `TPS73733DCQRDCQR`+- `TPS73733DCQRDRB`+- `TPS73733DCQRDRBT`+- `TPS73733DCQRDRBR`+- `TPS73733DCQRDRV`+- `TPS73733DCQRDRVT`+- `TPS73733DCQRDRVR`++## CAD (KiCad official)++- Symbol: `TPS73733DCQR`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223-6 (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/tps73733dcqr.pdf) (32 pp, sha256 `d13584b386b9f8d9`, 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/tps73733dcqr-datasheet.pdf)

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