UC2844BD1013TR

@@ -0,0 +1,50 @@+# UC2844BD1013TR++**STMicroelectronics** · AC-DC Controllers and Regulators · SO-8++UC2844BD1013TR from STMicroelectronics, in a SO-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 | COMP | output | Error Amplifier output, made available for loop compensation. Typically connected back to VFB (pin 2) through a compensation network Zf. |+| 2 | VFB | input | Inverting input of the Error Amplifier. Normally connected to the switching power supply output through a resistor divider; internal reference is 2.5V. |+| 3 | ISENSE | input | Current sense input. A voltage proportional to inductor/switch current is connected to this pin; the PWM uses this information to terminate output switch conduction. Max input signal ~1V. |+| 4 | RT/CT | passive | Oscillator timing pin. Oscillator frequency and maximum output duty cycle are programmed by connecting resistor RT to VREF and capacitor CT to ground. Operation up to 500kHz possible. |+| 5 | GROUND | power_in | Combined control circuitry and power ground return. All voltages are referenced to this pin. |+| 6 | OUTPUT | output | High-current totem-pole gate drive output for driving a power MOSFET. Sources and sinks peak currents up to ±1A. |+| 7 | VCC | power_in | Positive supply for the control IC (Vi). Max 30V (self-limiting via internal zener ~36V). For UC2844B, UVLO turn-on threshold ~16V, turn-off ~10V. |+| 8 | VREF | power_out | Trimmed 5V reference output (5.00V typ, ±1% at 25°C, 50mA capable). Provides charging current for oscillator capacitor CT through resistor RT. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SO-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `UC2844BD1013TR`+- `UC2844BN`++## CAD (KiCad official)++- Symbol: `UC2844BD1013TR`+- Footprint: `Package_SO:TI_SO-PowerPAD-8`+- 3D model: SO-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](docs/uc2844bd1013tr-datasheet.pdf) (15 pp, sha256 `fedfd7362400f8b3`, 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/uc2844bd1013tr-datasheet.pdf)

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