LM4040A30IDBZR

@@ -0,0 +1,47 @@+# LM4040A30IDBZR++**Texas Instruments** · Voltage Reference · SOT-23++LM4040A30IDBZR from Texas Instruments, in a SOT-23. 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 | CATHODE | passive | Cathode (K) of the shunt reference. Shunt current/voltage terminal; regulates to V_KA = 3.0 V above ANODE when biased through a series resistor R_S from V_S. Operating cathode current 45 µA typ to 15 mA max. |+| 2 | ANODE | passive | Anode (A) of the shunt reference. Common pin, normally connected to ground. |+| 3 | SUB | passive | Substrate connection. Attached to the die substrate and must be connected to ANODE or left open. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `LM4040A30IDBZR`+- `LM4040A30IDBZT`+- `LM4040A30IDBZRIDCKR`+- `LM4040A30IDBZRIDCKT`++## CAD (KiCad official)++- Symbol: `LM4040A30IDBZR`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (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/lm4040a30idbzr.pdf) (53 pp, sha256 `ef33a593f8be8c4d`, 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/lm4040a30idbzr-datasheet.pdf)

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