H8118A50M5R

@@ -0,0 +1,47 @@+# H8118A50M5R++**Shanghai Siproin Microelectronics** · DC-DC Converters · SOT-23-5++H8118A50M5R from Shanghai Siproin Microelectronics, 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 | EN | input | Chip-enable / shutdown input. Drive high (VSH >= 0.75 V) for normal step-up operation; drive low (VSL1 <= 0.3 V) to stop switching and enter shutdown (ISSS <= 1.0 uA at VEN=0V). Absolute max VSS-0.3 V to VSS+8 V; leakage +/-0.1 uA. |+| 2 | VOUT | power_out | Regulated boost output pin. Delivers the factory-programmed output voltage (2.1-5.5 V in 0.1 V steps, +/-2% accuracy) to the external output capacitor. Also serves as the feedback sense node for the internal error amplifier. Absolute max VSS-0.3 V to VSS+8 V. |+| 3 | NC | unconnected | No connection. Leave floating or tie to a stationary net; not internally bonded. |+| 4 | GND | power_in | Device ground / VSS return. All voltages are referenced to this pin. |+| 5 | LX | passive | Switching node for the external boost inductor. Connect the inductor between VIN and LX. Internal MOSFET switches this node; peak current is limited to ILX = 1000 mA and an over-voltage protection turns the FET off when VLX exceeds the absolute maximum (VSS-0.3 V to VSS+8 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `H8118A50M5RM5R`+- `H8118A50M5RM5G`+- `H8118A50M5RPR`+- `H8118A50M5RPG`++## CAD (KiCad official)++- Symbol: `H8118A50M5R`+- 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:** [Shanghai Siproin Microelectronics datasheet](docs/h8118a50m5r-datasheet.pdf) (6 pp, sha256 `b86cbaa950a423ac`, retrieved 2026-08-17, tier: lcsc)+- **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/h8118a50m5r-datasheet.pdf)

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