component
LM2594M-ADJ
Public Made by Adomby adom
UMW DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# LM2594M-ADJ++**UMW** · DC-DC Converters · SOP-8++LM2594M-ADJ from UMW, in a SOP-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. Leave floating or tie to a copper island for mechanical support only. |+| 2 | NC | unconnected | No internal connection. Leave floating or tie to a copper island for mechanical support only. |+| 3 | NC | unconnected | No internal connection. Leave floating or tie to a copper island for mechanical support only. |+| 4 | Feedback | input | Feedback (FB) input for the internal error amplifier. Connect to the midpoint of an external resistor divider from the regulated output to GND. The internal feedback threshold is 1.23 V typical, so VOUT = 1.23 V x (1 + R2/R1). |+| 5 | ON/OFF | input | Active-low enable input with hysteresis (VIH >= 1.4 V disables, VIL <= 0.8 V enables). Drive low to turn the regulator on and high to place it in shutdown (ISTBY ~ 80 uA). Floating defaults low (regulator ON); absolute max is 25 V. |+| 6 | GND | power_in | Device ground reference and return for internal circuitry. Route outside the catch (Schottky) diode and output capacitor return path to prevent switching-current spikes from injecting noise into the IC. |+| 7 | VIN | power_in | Supply voltage input. Operates from 4.5 V to 40 V (standard) or 4.5 V to 60 V (HV version); absolute max 45 V / 63 V (HV). Bypass VIN to GND with a suitably large low-ESR capacitor placed as close to the pin as possible to eliminate input noise. |+| 8 | Output | output | Power switch (SW) output node. Internal NPN power transistor connects VIN to this pin during the on-time. Connect to the inductor / catch-diode junction of the buck power stage; delivers up to 1.5 A continuous with 1.2 V typ. saturation voltage. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `LM2594M-ADJM-ADJ`++## CAD (KiCad official)++- Symbol: `LM2594M-ADJ`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/lm2594m-adj-datasheet.pdf) (17 pp, sha256 `b4935ffaa609c227`, 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/lm2594m-adj-datasheet.pdf)
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