ST1S14PHR

@@ -0,0 +1,48 @@+# ST1S14PHR++**STMicroelectronics** · DC-DC Converters · SOIC-8++ST1S14PHR from STMicroelectronics, in a SOIC-8. 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 | BOOT | passive | Bootstrap capacitor pin for the N-channel high-side gate driver. Connect a 100 nF low-ESR ceramic capacitor between BOOT and SW. Absolute max 55 V. |+| 2 | PG | output | Power good open-collector output. Asserts when VFB reaches ~0.92*VOUT (rising) and de-asserts at ~0.8*VOUT (falling). VOL ≤ 0.4 V at ISINK = 6 mA. Requires an external pull-up. Absolute max -0.3 to (VIN+0.3) V. |+| 3 | EN1 | input | Active-low enable input. Device is ON when EN1 is low (≤0.5 V) and EN2 is high (≥1.5 V). Biasing current ~1.6 µA at 5 V. Absolute max -0.3 to 7 V. |+| 4 | FB | input | Feedback voltage input to the error amplifier. Internal reference is typ. 1.22 V (1.202-1.239 V). Bias current ≤50 nA. Connect to the external resistor divider from VOUT. Absolute max -0.3 to 3 V. |+| 5 | EN2 | input | Active-high enable input. Device is ON only when EN2 is high (≥1.5 V) and EN1 is low. Biasing current up to 10 µA. Absolute max -0.3 to (VIN+0.3) V. |+| 6 | GND | power_in | Device ground. The exposed pad must also be soldered to this ground plane for proper thermal and electrical performance. |+| 7 | VIN | power_in | Input supply pin. Operating range 5.5 V to 48 V; absolute max 52 V. Decouple locally with a low-ESR ceramic input capacitor. |+| 8 | SW | power_out | Switching node - drain of the internal N-channel power MOSFET. Connect to the external inductor and freewheeling Schottky diode. Absolute max -1 to (VIN+0.3) V. |+| EP | EP | power_in | Exposed thermal pad on the underside of the HSOP-8 package. Must be soldered to the GND plane to provide the primary thermal path (RthJA ≈ 40 °C/W) and complete the ground connection. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `ST1S14PHR`++## CAD (KiCad official)++- Symbol: `ST1S14PHR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/st1s14phr.pdf) (46 pp, sha256 `c72a54d61a0f530a`, 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/st1s14phr-datasheet.pdf)

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