component
TPSY8121BABC
Public Made by Adomby adom
TECH PUBLIC DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# TPSY8121BABC++**TECH PUBLIC** · DC-DC Converters · SOT-23-6++TPSY8121BABC from TECH PUBLIC, 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 | Boot-strap pin. Supplies the high-side gate driver. Decouple this pin to LX with a 100nF (0.1uF) ceramic capacitor. |+| 2 | GND | power_in | Ground pin. Device return; tie to the system ground plane with a short, low-impedance connection. |+| 3 | FB | input | Output feedback pin. Connect to the center tap of the output resistor divider to program Vout = 0.6 V × (1 + R1/R2). Internal reference is 0.6V (±2%). |+| 4 | EN | input | Enable control input. Pull high (VIH ≥ 2V) to turn the regulator on, pull low (≤ 0.5V) to shut down. Do not float. |+| 5 | IN | power_in | Input supply pin (4.5V to 20V). Decouple to GND with at least a 1uF (typ. 4.7uF X5R) ceramic capacitor placed as close to the IN and GND pins as possible. |+| 6 | LX | power_out | Switching node / inductor pin. Connects to the source of the internal high-side FET and drain of the low-side FET; connect to the switching node of the output inductor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TECH PUBLIC |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TPSY8121BABC`++## CAD (KiCad official)++- Symbol: `TPSY8121BABC`+- 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:** [TECH PUBLIC datasheet](docs/tpsy8121babc-datasheet.pdf) (7 pp, sha256 `53b5795b53ca7410`, 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/tpsy8121babc-datasheet.pdf)
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