component
LM2594MX-ADJ
Public Unreviewedby Ray
Texas Instruments DC-DC Converters, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM2594MX-ADJ
Texas Instruments · DC-DC Converters · SOIC-8
LM2594MX-ADJ 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 | NC | unconnected | No internal connection. Should be soldered to PCB for best heat transfer. |
| 2 | NC | unconnected | No internal connection. Should be soldered to PCB for best heat transfer. |
| 3 | NC | unconnected | No internal connection. Should be soldered to PCB for best heat transfer. |
| 4 | FB | input | Feedback pin. Connect to the external resistor divider that sets the output voltage. Internal feedback reference is 1.230V typical (VFB). Absolute maximum voltage on this pin is +25V; feedback bias current is 10 nA typical. |
| 5 | ON/OFF | input | TTL-compatible shutdown control input. Logic low (<=0.6V) enables the regulator; logic high (>=2.0V) puts the device into low-power standby (IQ_STBY ~= 85 uA). Threshold ~1.3V. Absolute max input voltage +25V. |
| 6 | GND | power_in | Circuit ground reference for the device. |
| 7 | VIN | power_in | Unregulated DC input supply. Operating range 4.5V to 40V (LM2594) or 4.5V to 60V (LM2594HV). Requires a local input bypass capacitor (typ. 68 uF) close to this pin. |
| 8 | OUTPUT | output | Internal switch output. Connect to the external inductor / catch-diode / output-capacitor buck network. Delivers up to 0.5A load current; internal switch VSAT ~0.9V at 0.5A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LM2594MX-ADJLM2594MX-ADJMLM2594MX-ADJN
CAD (KiCad official)
- Symbol:
LM2594MX-ADJ - 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 (40 pp, sha256
7251591e38dcf480, 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).