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LM2596MD5T-5.0

Public Made by Adom

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HGSEMI DC-DC Converters, TO-252-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2596MD5T-5.0

HGSEMI · DC-DC Converters · TO-252-5

LM2596MD5T-5.0 from HGSEMI, in a TO-252-5. 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 4.5V~40V DC supply (60V for HV types), with a large capacitor placed between VIN and ground to suppress supply noise.
2 OUTPUT output Power switch output pin, a switching node that supplies the output load.
3 GND power_in Ground pin, which in layout should be placed on the ground return path at the output point away from the Schottky diode to keep switching current spikes from adding noise.
4 FEEDBACK input Voltage feedback pin that monitors 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 shuts it down, defaulting to low (on) when floating.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-252-5
Category Power Management (PMIC)
Pins 6

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 voltage (LM2596-5.0) VOUT 4.8 5 5.2 V VIN=7V～40V ILOAD=0.2A～3A 6
Oscillator frequency FOSC 127 150 173 kHz 7
Current limit IL 3.6 4.8 6.9 A VFB=0 7
Standby current ISTBY 80 200 uA VON_OFF=5V 7
Quiescent operating current IQ 2 10 mA VON_OFF=0V, VFB=VIN 7
ON/OFF pin threshold voltage, control OFF (high level) VON_OFF 1.4 V control OFF (high level) 7
ON/OFF pin threshold voltage, control ON (low level) VON_OFF 0.8 V control ON (low level) 7
ON/OFF pin leakage current (OFF) IH 5 30 µA VON_OFF=2.5V(OFF) 7
ON/OFF pin leakage current (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 operating voltage (LM2596) VIN 4.5 40 V 7
Input supply voltage (LM2596), absolute maximum VIN 40 V 5
Feedback pin voltage, absolute maximum (lower limit) VFB -0.3 V 5
ON/OFF pin voltage, absolute maximum (lower limit) VON_OFF -0.3 V 5
Power output pin voltage, absolute maximum (lower limit) VOUT -0.3 V 5
Operating junction temperature, absolute maximum TJ -40 125 ℃ 5
Storage temperature TSTG -65 150 ℃ 5
Lead soldering temperature TLEAD 260 ℃ TO-252/SOP/DFN, 10 s 5
ESD capability (human body model) ESD 2000 V Human body model 5
Input voltage (LM2596), recommended VIN 5 40 V 5
Operating junction temperature range, recommended TJ -40 125 ℃ 5

CAD (KiCad official)

  • Symbol: LM2596MD5T-5.0
  • Footprint: Package_TO_SOT_SMD:TO-252-5_TabPin6
  • 3D model: TO-252-5 (KiCad packages3D, STEP)
  • 3D model files: lm2596md5t-5-0-etched.step / lm2596md5t-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2596md5t-5-0.step / lm2596md5t-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