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LM2597MX-ADJ

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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lm2597mx-adj-hero.glb lm2597mx-adj: hero GLB from the etched model (keeps the MPN mark) · Ray 10h ago
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LM2597MX-ADJ

Texas Instruments · DC-DC Converters · SOIC-8

LM2597MX-ADJ from Texas Instruments, in a SOIC-8. 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 Error Flag output Open-collector output that goes low when the regulated output drops more than 5% below nominal, and stays low until VOUT reaches 95% of nominal plus the Delay pin capacitor time, so it can reset a microprocessor at power-up.
2 Delay output Provides an adjustable power-up delay, set by an external capacitor, between VOUT reaching 95% of nominal and the Error Flag going high, and the pin voltage is limited to 1.5 V maximum.
3 Bias Supply input Allows the internal circuitry to be powered from the regulated output or an external supply instead of VIN for higher efficiency, with bias supply voltage limited to -0.3 V to 30 V.
4 Feedback input Senses the regulated output voltage to close the feedback loop, with the pin voltage limited to -0.3 V to 25 V.
5 Shutdown/Soft-Start input Dual-function pin where logic-level signals shut the regulator down (total input current about 80 µA), and a capacitor on this pin gives controlled soft-start; the pin input voltage is limited to 6 V maximum.
6 Ground power_in Circuit ground.
7 +VIN power_in Positive input supply for the switching regulator, requiring a suitable bypass capacitor; for the LM2597 the recommended supply is 4.5 V to 40 V with a 45 V absolute maximum.
8 Output output Internal switch output that swings between (+VIN - VSAT) and about -0.5 V at a duty cycle of VOUT/VIN, so its PCB copper area must be kept minimal to limit coupling to sensitive circuitry.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: LM2597MX-ADJ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm2597mx-adj-etched.step / lm2597mx-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2597mx-adj.step / lm2597mx-adj.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (52 pp, sha256 4c810080b3229f59, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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