component
LM2596S-ADJ
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UMW DC-DC Converters, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# LM2596S-ADJ++**UMW** · DC-DC Converters · TO-263-5++LM2596S-ADJ from UMW, in a TO-263-5. 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 | VIN | power_in | Input supply voltage. Operating range 4.75V to 40V (LM2596) / 4.75V to 60V (LM2596HV). Absolute maximum 45V (63V for HV). Bypass with a low-ESR input capacitor (typ. 680 µF). |+| 2 | Output | output | Switching output pin. Emitter of the internal NPN power switch; connects to the external catch diode (e.g. 1N5824) and to the inductor of the buck output filter (typ. 33 µH). Steady-state voltage rated down to -1V; peak switch current limit typ. 4.5A. |+| 3 | GND | power_in | Device ground. Common return for the input capacitor, output capacitor, catch diode, and feedback divider. |+| 4 | Feedback | input | Output voltage feedback input to the internal error amplifier. For the ADJ version, connect to the mid-point of an external resistor divider from VOUT; internal reference VFB = 1.23V (typ). Bias current 10 nA typ (100 nA max). Absolute max -0.3V to +25V. |+| 5 | ON/OFF | input | Active-low shutdown / enable input (bar over ON/OFF). Regulator is ON when the pin is Low (<0.6V) or left floating; regulator is OFF (standby, IQ typ 80 µA) when the pin is High (>2V). TTL-compatible; absolute max -0.3V to +25V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LM2596S-ADJ`+- `LM2596S-ADJLM2596HVS-ADJ`+- `LM2596S-ADJLM2596T-ADJ`+- `LM2596S-ADJLM2596HVT-ADJ`++## CAD (KiCad official)++- Symbol: `LM2596S-ADJ`+- Footprint: `Package_TO_SOT_SMD:TO-263-2`+- 3D model: TO-263-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/lm2596s-adj-datasheet.pdf) (28 pp, sha256 `26d031e9696524e9`, 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/lm2596s-adj-datasheet.pdf)
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