LM385MX

@@ -0,0 +1,60 @@+# LM385MX++**Texas Instruments** · Voltage Reference · SOIC-8++LM385MX from Texas Instruments, in a SOIC-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 | FEEDBACK | input | Feedback/adjust input to the internal band-gap amplifier. Connect to the tap of an external resistive divider from V+ to V- to program the reference voltage from 1.24 V up to 5.30 V. Feedback current is typically ~13 nA (LM185) / 16 nA (LM385). |+| 2 | NC | unconnected | No internal connection. Leave floating or tie to any convenient net; not electrically connected to the die. |+| 3 | NC | unconnected | No internal connection. Leave floating or tie to any convenient net; not electrically connected to the die. |+| 4 | V- | power_in | Negative supply / anode of the shunt reference. Return current path; typically connected to circuit ground in shunt-regulator configurations. Absolute maximum reverse current 30 mA. |+| 5 | NC | unconnected | No internal connection. Leave floating or tie to any convenient net; not electrically connected to the die. |+| 6 | NC | unconnected | No internal connection. Leave floating or tie to any convenient net; not electrically connected to the die. |+| 7 | NC | unconnected | No internal connection. Leave floating or tie to any convenient net; not electrically connected to the die. |+| 8 | V+ | power_in | Positive supply / cathode of the shunt reference. Fed through an external series resistor from the raw supply to set the reference bias current (10 µA to 20 mA operating range). Operates over a 1.24 V to 5.3 V output range set by FEEDBACK. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `LM385M/NOPB`+- `LM385MX/NOPB`+- `LM385BM/NOPB`+- `LM385BMX/NOPB`+- `LM385Z`+- `LM385BZ`+- `LM385MXLM285Z`+- `LM385MXLM285BZ`+- `LM385MXLM185H`+- `LM385MXLM185BXH`+- `LM385MXLM185BYH`+- `LM385MXLM185E/883`++## CAD (KiCad official)++- Symbol: `LM385MX`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm385-adj) (None pp, sha256 `53da1c19ad1627c4`, 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/lm385mx-datasheet.pdf)

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