component
LM2596MD5T-ADJ
Public Made by Adomby adom
HGSEMI DC-DC Converters, TO-252-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LM2596MD5T-ADJ
HGSEMI · DC-DC Converters · TO-252-5
LM2596MD5T-ADJ 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 requiring a 4.5V to 40V DC supply (60V for HV types), with a large-value capacitor placed between this pin and ground to suppress supply noise. |
| 2 | OUTPUT | output | Power switch output pin, which is the switching node that supplies the output load. |
| 3 | GND | power_in | Ground pin, which should be placed in the layout on the ground 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 senses the output voltage through an external resistor divider, with a threshold voltage of 1.23V. |
| 5 | ON_OFF | input | Enable pin where a low level enables the chip and a high level shuts it 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 | 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-ADJ) | VOUT | 1.193 | 1.23 | 1.267 | V | VIN=4.5V～40V, ILOAD=0.2A～3A | 7 |
| Input operating voltage (LM2596) | VIN | 4.5 | 40 | V | 7 | ||
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 7 | |
| Quiescent current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 7 | |
| Oscillator frequency | FOSC | 127 | 150 | 173 | kHz | 7 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 7 |
| Switch pin threshold voltage, high (control off) | VON_OFF | 1.4 | V | 7 | |||
| Switch pin threshold voltage, low (control on) | VON_OFF | 0.8 | V | 7 | |||
| Switch pin leakage current (OFF) | IH | 5 | 30 | µA | VON_OFF=2.5V(OFF) | 7 | |
| Switch 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 supply voltage (LM2596) | VIN | 5 | 40 | V | 5 | ||
| Operating junction temperature range | TJ | -40 | 125 | ℃ | 5 | ||
| Input supply voltage (LM2596) | VIN | 40 | V | 5 | |||
| Feedback pin voltage | VFB | -0.3 | V | 5 | |||
| ON_OFF pin voltage | VON_OFF | -0.3 | V | 5 | |||
| Power switch output pin voltage | VOUT | -0.3 | V | 5 | |||
| Operating junction temperature | TJ | -40 | 125 | ℃ | 5 | ||
| Storage temperature | TSTG | -65 | 150 | ℃ | 5 | ||
| Soldering temperature, 10 s (TO-252) | TLEAD | 260 | ℃ | 10 s, TO-252/SOP/DFN | 5 | ||
| ESD capability | ESD | 2000 | V | Human body model | 5 | ||
| Efficiency (LM2596-ADJ) | Ƞ | 73 | % | VIN=12V, VOUT=3V, ILOAD=3A | 7 |
CAD (KiCad official)
- Symbol:
LM2596MD5T-ADJ - Footprint:
Package_TO_SOT_SMD:TO-252-5_TabPin6 - 3D model: TO-252-5 (KiCad packages3D, STEP)
- 3D model files:
lm2596md5t-adj-etched.step/lm2596md5t-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2596md5t-adj.step/lm2596md5t-adj.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).