LMR14030SDDAR

@@ -0,0 +1,49 @@+# LMR14030SDDAR++**Texas Instruments** · DC-DC Converters · SO-8-EP++LMR14030SDDAR from Texas Instruments, in a SO-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 | BOOT | passive | Bootstrap capacitor connection for the high-side MOSFET driver. Connect a high-quality 0.1 µF capacitor from BOOT to SW. Absolute max 49 V to GND, 6.5 V to SW. |+| 2 | VIN | power_in | Power supply input, 4 V to 40 V recommended (44 V abs max). Connect bypass capacitor C_IN as close as possible between VIN and GND. |+| 3 | EN | input | Precision enable input with internal pull-up current source. Pull below 1.2 V (typ) to disable; float or connect to VIN to enable. Can be used with a resistor divider to set input UVLO. EN threshold 1.05-1.38 V. |+| 4 | RT/SYNC | bidirectional | Resistor timing / external clock synchronization input. An internal amplifier holds this pin at a fixed voltage; an external resistor to GND sets switching frequency (200 kHz-2.5 MHz). Pulling above the PLL threshold switches the pin to a high-impedance sync clock input (250 kHz-2.3 MHz). Abs max 3.6 V. |+| 5 | FB | input | Feedback input pin. Connect to the output feedback divider to set V_OUT. Reference V_FB = 0.750 V typ. Do not short to ground during operation. Abs max 7 V. |+| 6 | SS | passive | Soft-start control pin. Connect a capacitor from SS to GND to program the soft-start ramp time. Internal charge current 3 µA typ. Abs max 5 V. |+| 7 | GND | power_in | System ground pin. Return for VIN bypass and all control circuitry. |+| 8 | SW | power_out | Switching output of the regulator, internally connected to the high-side power MOSFET drain. Connect to the power inductor and catch/Schottky diode. Recommended range -1 V to 40 V (abs max -3 V to 44 V). |+| 9 | PAD | power_in | Exposed thermal pad on the package bottom. Major heat-dissipation path of the die; must be soldered to the PCB ground plane for proper thermal performance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SO-8-EP |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `LMR14030SDDARSDDAR`+- `LMR14030SDDARSDDA`++## CAD (KiCad official)++- Symbol: `LMR14030SDDAR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lmr14030sddar.pdf) (30 pp, sha256 `86735f604f09329c`, retrieved 2026-08-17, tier: manufacturer)+- **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/lmr14030sddar-datasheet.pdf)

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