component
TPSY8120B1ABC
Public Unreviewedby Ray
TECH PUBLIC DC-DC Converters, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPSY8120B1ABC
TECH PUBLIC · DC-DC Converters · SOT-23-6
TPSY8120B1ABC 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. Connect a 100 nF ceramic capacitor between BS and LX to develop the gate-drive voltage for the internal high-side MOSFET. |
| 2 | GND | power_in | Ground return for the device. Maximize copper area on this pin for thermal and noise performance; connect to the ground plane. |
| 3 | FB | input | Output feedback pin. Connect to the center tap of the output resistor divider (R1/R2) to program Vout = 0.6 V × (1 + R1/R2). Feedback reference is 0.6 V (±2%). |
| 4 | EN | input | Enable control. Pull high (>2 V) to turn the regulator on; pull low (<0.5 V) to shut it down. Do not float. Typical EN input sink current 1 µA. |
| 5 | IN | power_in | Input supply pin, 4.5 V to 16 V (18 V absolute max). Decouple with at least a 1 µF (recommended 4.7 µF) low-ESR ceramic capacitor to GND, placed close to the IN and GND pins. |
| 6 | LX | power_out | Switching node. Connect to the external output inductor. Internally tied to the drain of the high-side MOSFET and source of the low-side MOSFET; also the low reference for the BS bootstrap capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
TPSY8120B1ABC
CAD (KiCad official)
- Symbol:
TPSY8120B1ABC - 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 (7 pp, sha256
1949de73e9fcd222, 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).