TMI3253S

@@ -0,0 +1,47 @@+# TMI3253S++**TMI** · DC-DC Converters · SOT-23-6++TMI3253S from TMI, 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 | BS | passive | Bootstrap. A capacitor connected between LX and BS pins is required to form a floating supply across the high-side switch driver. Absolute-maximum BS voltage is 26V; BS-to-LX max is 6V. |+| 2 | GND | power_in | Ground return pin for the IC and the low-side power MOSFET source. |+| 3 | FB | input | Output-voltage feedback input. Connect to the center tap of the external resistor divider. Regulated to VREF=0.6V typ (TMI3253S). Absolute maximum -0.3V to 6V. |+| 4 | EN | input | Enable input. Drive logic-high to enable the IC; drive logic-low to disable and enter micro-power shutdown. Do not float. EN rising threshold ~0.95V (0.85V-1.05V), 180mV hysteresis. Abs-max 20V. |+| 5 | IN | power_in | Power supply input. Operating range 4.5V to 18V; UVLO rising ~4.3V. Absolute maximum 20V. Bypass with a low-ESR ceramic capacitor (22µF typical) to GND. |+| 6 | LX | power_out | Switching node. Common drain of the integrated high-side and low-side power MOSFETs; connects to the external inductor. Abs-max -0.3V to 20V (-4.5V to 22V transient <10ns). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TMI |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TMI3253S`+- `TMI3253STMI3253`+- `TMI3253STMI3253T`++## CAD (KiCad official)++- Symbol: `TMI3253S`+- 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:** [TMI datasheet](docs/tmi3253s-datasheet.pdf) (16 pp, sha256 `b58c2a4a18985f81`, 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/tmi3253s-datasheet.pdf)

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