component

LM2596MDT-5.0

Public Made by Adom

by adom

HGSEMI DC-DC Converters, TO-252-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm2596mdt-5.0factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 7d ago
viewers lm2596mdt-5-0: viewers · Ray 7d ago
lm2596mdt-5-0-etched.glb Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0-etched.step lm2596mdt-5-0: factory component page (tier=lcsc) · Ray 7d ago
lm2596mdt-5-0-hero.glb lm2596mdt-5-0: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
lm2596mdt-5-0-hero.overlay.json Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0.glb Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0.kicad_mod Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0.kicad_sym Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0.lbr Publish 0.1.0 · Ray 7d ago
lm2596mdt-5-0.step Publish 0.1.0 · Ray 7d ago
package.json Publish 0.1.0 · Ray 7d ago
page.json Set visibility: public · Ray 7d ago
README.md Publish 0.1.0 · Ray 7d ago

LM2596MDT-5.0

HGSEMI · DC-DC Converters · TO-252-4

LM2596MDT-5.0 from HGSEMI, in a TO-252-4. 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 requiring a DC supply of 4.5V to 40V (60V for HV versions), with a large capacitor placed between VIN and ground to remove supply noise.
2 OUTPUT output Power switch output and switching node that supplies the output load, rated -0.3V to VIN.
3 GND power_in Ground pin, drawn as a shortened stub in the TO-252-4 drawing and tied to the metal tab, which the datasheet labels GND; it should be placed on the output-point ground return path away from the Schottky diode to avoid switching-current spike noise.
4 FEEDBACK input Voltage feedback pin that senses the output voltage through a resistor divider network, with a feedback threshold voltage of 1.23V.
5 ON_OFF input Enable pin where a low level turns the chip on and a high level turns it off, defaulting to low when floating (high threshold 1.4V, low threshold 0.8V).

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-252-4
Category Power Management (PMIC)
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output regulation voltage, LM2596-5.0 (non-HV) VOUT 4.8 5 5.2 V VIN=7V～40V, ILOAD=0.2A～3A 6
Input operating voltage, LM2596 (non-HV) VIN 4.5 40 V 7
Standby current ISTBY 80 200 uA VON_OFF=5V 7
Quiescent operating current IQ 2 10 mA VON_OFF=0V, VFB=VIN 7
Oscillator operating frequency FOSC 127 150 173 kHz 7
Current limit IL 3.6 4.8 6.9 A VFB=0 7
ON/OFF pin threshold voltage, high (control off) VON_OFF 1.4 V 7
ON/OFF pin threshold voltage, low (control on) VON_OFF 0.8 V 7
ON/OFF pin input current, high (OFF) IH 5 30 µA VON_OFF=2.5V(OFF) 7
ON/OFF pin input current, low (ON) IL 0.2 10 µA VON_OFF=0.5V(ON) 7
Saturation voltage VCE 1.3 1.5 V VFB=0V, LOUT=3A 7
Maximum duty cycle DMAX 100 % CFB=0V 7
Input voltage, LM2596 (recommended) VIN 5 40 V 5
Operating junction temperature range (recommended) TJ -40 125 ℃ 5
Input supply voltage, LM2596 (absolute maximum) VIN 40 V 5
Feedback pin voltage (absolute maximum) VFB -0.3 V Upper limit printed as VIN 5
ON/OFF pin voltage (absolute maximum) VON_OFF -0.3 V Upper limit printed as VIN 5
Power MOSFET output pin voltage (absolute maximum) VOUT -0.3 V Upper limit printed as VIN 5
Operating junction temperature (absolute maximum) TJ -40 125 ℃ 5
Storage temperature TSTG -65 150 ℃ 5
Lead soldering temperature TLEAD 260 ℃ 10 s, TO-252/SOP/DFN 5
ESD capability, human body model ESD 2000 V Human body model 5

CAD (KiCad official)

  • Symbol: LM2596MDT-5.0
  • Footprint: Package_TO_SOT_SMD:TO-252-4
  • 3D model: TO-252-4 (KiCad packages3D, STEP)
  • 3D model files: lm2596mdt-5-0-etched.step / lm2596mdt-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2596mdt-5-0.step / lm2596mdt-5-0.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (17 pp, sha256 986b3081cc1a4676, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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