TD1484AMR

@@ -0,0 +1,49 @@+# TD1484AMR++**Techcode Semicon** · DC-DC Converters · SOIC-8-EP++TD1484AMR from Techcode Semicon, in a SOIC-8-EP. 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 | High-Side Gate Drive Boost Input. Supplies drive voltage for the high-side N-channel MOSFET. Connect a 0.01µF or greater bootstrap capacitor from SW to BS to power the high-side switch. |+| 2 | IN | power_in | Supply Voltage input. Operates from +4.75V to +20V unregulated input. An input decoupling capacitor (C1) is required at this pin to prevent large voltage spikes. |+| 3 | SW | power_out | Power Switching Output. The switching node that supplies power to the output. Connect the output LC filter from SW to the load; also ties to the bootstrap capacitor for the high-side switch. |+| 4 | GND | power_in | Device ground. Also connected internally to the exposed pad, which serves as a thermal radiator and must be soldered to the PCB ground plane. |+| 5 | FB | input | Feedback Input. Senses the output voltage via a resistive divider to regulate the output. Feedback threshold is 0.923V (typ). |+| 6 | COMP | passive | Compensation Node for the regulation control loop. Connect a series RC network from COMP to GND to compensate the loop; an additional shunt capacitor from COMP to GND may be required. |+| 7 | EN | input | Enable Input. Digital input that turns the regulator on (high) or off (low). Threshold ~1.5V typ; pull up with a 100kΩ resistor for automatic startup. |+| 8 | SS | passive | Soft-Start Control Input. A capacitor from SS to GND sets the soft-start period (0.1µF ≈ 15ms via ~6µA charge current). Leave unconnected to disable the soft-start feature. |+| 9 | EP | power_in | Exposed thermal pad on the bottom of the ESOP-8 package. Internally connected to GND and must be soldered to the PCB ground plane for proper thermal performance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Techcode Semicon |+| Package | SOIC-8-EP |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `TD1484AMRTD1484AM`+- `TD1484AMR`++## CAD (KiCad official)++- Symbol: `TD1484AMR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Techcode Semicon datasheet](docs/td1484amr-datasheet.pdf) (13 pp, sha256 `3605ce070377a87a`, 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/td1484amr-datasheet.pdf)

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