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LM2596SX-ADJ-JSM

Public Made by Adom

by adom

JSMSEMI DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm2596sx-adj-jsmfactory-2.0.0extractor-text
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LM2596SX-ADJ-JSM

JSMSEMI · DC-DC Converters · TO-263-5

LM2596SX-ADJ-JSM from JSMSEMI, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Supply input pin that needs a DC source of 4.5V to 40V (60V for HV types), with a large-value capacitor placed between VIN and GND to remove supply noise.
2 OUTPUT output Power transistor output pin, a switching node that supplies power to the output load.
3 GND power_in Ground pin, which in layout should be routed to the output capacitor ground path apart from the Schottky diode to prevent switching current spikes from adding noise to the circuit.
4 FEEDBACK input Voltage feedback pin that monitors and controls the output voltage through an external resistor divider network, with a feedback threshold voltage of 1.23V.
5 ON_OFF input Enable pin where a low level lets the chip operate and a high level shuts the chip down, defaulting to low when left floating.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package TO-263-5
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: LM2596SX-ADJ-JSM
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm2596sx-adj-jsm-etched.step / lm2596sx-adj-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2596sx-adj-jsm.step / lm2596sx-adj-jsm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: JSMSEMI datasheet (10 pp, sha256 a271e578a0d6d8e7, retrieved 2026-11-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF