component
TX4151
Public Made by Adomby adom
XDS DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# TX4151++**XDS** · DC-DC Converters · SOP-8++TX4151 from XDS, in a SOP-8. 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 | VIN | power_in | Chip supply voltage input. Operating range +8V to +30V (absolute max +34V). Bypass with a low-ESR ceramic capacitor (typ. 10μF) placed close to the pin. |+| 2 | COMP | bidirectional | Loop compensation pin. External R-C network to GND sets the PWM/error-amplifier compensation. Absolute max +3V. |+| 3 | GND | power_in | Device ground reference. |+| 4 | FB | input | Output voltage feedback input. Regulated to internal reference VFB = 0.835V (0.815-0.855V). VOUT = (1 + R3/R4) × 0.835V. Absolute max +3V. |+| 5 | CS- | input | Negative terminal of the current-sense input. External sense resistor is connected between CS+ and CS- to set the output current limit; ILIMIT = 75mV / Rsense. Common-mode range -0.6V to +6V. |+| 6 | CS+ | input | Positive terminal of the current-sense input. Together with CS- senses the voltage across the external current-limit resistor (VOFFS typ. 75mV). Common-mode range -0.6V to +6V. |+| 7 | CHRG | output | Open-drain charge-status indicator output. Sinks up to IOUT ≈ 1.5mA; absolute max pin voltage +10V. Typically pulled up through an LED or resistor to indicate charging state. |+| 8 | SW | output | Switch node. Drain of the internal 100mΩ PMOS power switch; connects to the external inductor and freewheeling Schottky diode. Voltage range -1V to +34V. |+| EP | Exposed PAD | output | Exposed thermal pad on package underside. Datasheet specifies it is connected to the switch node (SW); leave floating or tie to SW plane - do NOT connect to GND. Improves thermal dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XDS |+| Package | SOP-8 |+| Category | PMIC |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `TX4151`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XDS datasheet](docs/tx4151-datasheet.pdf) (10 pp, sha256 `0be198588bad936b`, 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/tx4151-datasheet.pdf)
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