MT36291

@@ -0,0 +1,41 @@+# MT36291++**Aerosemi** · DC-DC Converters · SOT-23-6++MT36291 from Aerosemi, in a SOT-23-6. 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 | SW | power_out | Power Switch Output. Drain of the internal 80mΩ N-channel power MOSFET. Connect the boost inductor and the Schottky output rectifier here. SW node can swing between GND and 22V. |+| 2 | GND | power_in | Ground pin. Connect to a solid ground plane for heat sinking and noise protection. |+| 3 | FB | input | Feedback input to the internal error amplifier. Regulated to the 0.6V internal bandgap reference. Connect an external resistor divider from VOUT to FB to GND to set the output voltage: VOUT = 0.6V x (1 + R1/R2). FB input bias current is typically -10nA. |+| 4 | EN | input | Regulator On/Off Control Input. Drive high (>1.5V) to enable the converter, low (<0.6V) to shut it down (shutdown current ~0.1µA). Tie to VIN for automatic startup. Absolute max 18V. |+| 5 | VIN | power_in | Input supply pin, 2.2V to 16V operating range (18V absolute max). Must be locally bypassed with a low-ESR ceramic capacitor (22µF X5R/X7R recommended) placed close to the IC. |+| 6 | OC | input | Adjustable peak switch current limit. Connect a resistor (19kΩ to 96kΩ) from OC to GND to program the current limit from 2.5A down to 0.5A per IOCP = 48000/R. Leave floating to use the internal 2.5A default current limit. Keep trace short. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Aerosemi |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `MT36291`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Aerosemi datasheet](docs/mt36291-datasheet.pdf) (9 pp, sha256 `863d456e8ebecc44`, 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/mt36291-datasheet.pdf)

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