TPS7B4253QDDARQ1

@@ -0,0 +1,52 @@+# TPS7B4253QDDARQ1++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8-EP++TPS7B4253QDDARQ1 from Texas Instruments, in a SOIC-8-EP. 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 | OUT | power_out | Regulated output. Block to GND with a ceramic capacitor (10 to 500 µF, ESR 1 mΩ to 20 Ω) close to the device pins per the Output Capacitor requirements. Supplies up to 300 mA at 2 V to 40 V (SO PowerPAD). |+| 2 | NC | unconnected | No internal connection. |+| 3 | GND | power_in | Ground reference. |+| 4 | FB | input | Feedback input for the tracker. Connects to an external resistor divider (or directly to OUT) to set the output voltage. Rated -1 V to 45 V absolute maximum; recommended 2 V to 18 V (SO PowerPAD). |+| 5 | ADJ | input | Reference / adjust input. Also serves as the enable in this package: a low signal (<0.7 V) disables the device, a high signal (≥2 V, SO PowerPAD) enables it. The reference voltage can be applied directly or through a divider; add a decoupling capacitor close to the pin. Recommended range 2 V to 18 V. |+| 6 | GND | power_in | Ground reference (second GND pin, tied to pin 3 internally). |+| 7 | NC | unconnected | No internal connection. |+| 8 | IN | power_in | Unregulated supply input. Recommended 4 V to 40 V (absolute max −40 V to 45 V, supports 45-V load dump and reverse polarity). Connect a bypass capacitor close to the pin to compensate for line influences. |+| 9 | PAD | passive | Exposed thermal pad. Connect to the GND pin/plane for best thermal performance, or leave floating (per the datasheet, connect to GND or leave floating). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8-EP |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++Same part, different packaging or reel option.++- `TPS7B4253QDDARQ1`+- `TPS7B4253QDDARQ1PWPR`+- `TPS7B4253QDDARQ1PWPRQ1`++## CAD (KiCad official)++- Symbol: `TPS7B4253QDDARQ1`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: SOIC-8-EP (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/tps7b4253qddarq1.pdf) (32 pp, sha256 `99574acc751879ee`, 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/tps7b4253qddarq1-datasheet.pdf)

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