component
LM385MX
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownLM385MX
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/NOPBLM385MX/NOPBLM385BM/NOPBLM385BMX/NOPBLM385ZLM385BZLM385MXLM285ZLM385MXLM285BZLM385MXLM185HLM385MXLM185BXHLM385MXLM185BYHLM385MXLM185E/883
CAD (KiCad official)
- Symbol:
LM385MX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm385mx-etched.step/lm385mx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm385mx.step/lm385mx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (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).