component
LM2596S-5.0
Public Made by Adomby adom
HGSEMI DC-DC Converters, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownLM2596S-5.0
HGSEMI · DC-DC Converters · TO-263-5
LM2596S-5.0 from HGSEMI, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Unregulated DC input supply. Operating range 4.75V to 40V (LM2596) / 4.75V to 60V (LM2596HV); absolute max 45V / 63V. Bypass close to pin with a low-ESR input capacitor (typ. 680 uF). |
| 2 | Output | output | Switching output node of the internal power switch. Connects to the external catch diode (e.g. 1N5824 Schottky) cathode and to the output inductor (typ. 33 uH). Rated 3A continuous load current; do not exceed -1V below ground in steady state. |
| 3 | GND | power_in | Device ground reference. Tie directly to the system ground plane; carries return current for both control and power stages. |
| 4 | Feedback | input | Output voltage feedback sense pin. For the fixed 5.0V version this pin ties directly to the regulated output; internal divider sets Vout = 5V. Absolute max -0.3V to +25V. |
| 5 | ON/OFF | input | Active-low TTL-compatible shutdown. Regulator is enabled when this pin is Low or left floating; pulled High (up to +25V) forces low-power standby (IQ ~ 80 uA typ.). Absolute max -0.3V to +25V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-263-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
LM2596S-5.0LM2596HVS-5.0LM2596T-5.0LM2596HVT-5.0
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, LM2596S-5.0 (TJ=25°C) | VOUT | 4.8 | 5 | 5.2 | V | VIN=12V, ILOAD=3A; TJ=25°C | 5 |
| Output voltage, LM2596S-5.0 (full operating temperature range) | VOUT | 4.75 | 5 | 5.25 | V | VIN=12V, ILOAD=3A; full operating temperature range | 5 |
| Oscillator frequency | fO | 117 | 150 | 183 | kHz | 6 | |
| Current limit (TJ=25°C) | ICL | 3.6 | 4.5 | 6.9 | A | Peak Current (Notes 7, 8) | 6 |
| Current limit (full operating temperature range) | ICL | 3.4 | 4.5 | 7.5 | A | Peak Current (Notes 7, 8) | 6 |
| Saturation voltage (TJ=25°C) | VSAT | 1.16 | 1.4 | V | IOUT=3A (Notes 7, 8) | 6 | |
| Saturation voltage (full operating temperature range) | VSAT | 1.16 | 1.5 | V | IOUT=3A (Notes 7, 8) | 6 | |
| Quiescent current | IQ | 5 | 10 | mA | (Note 9) | 6 | |
| Standby quiescent current (TJ=25°C) | ISTBY | 80 | 200 | µA | ON/OFF pin=5V (OFF) | 6 | |
| Standby quiescent current (full operating temperature range) | ISTBY | 80 | 250 | µA | ON/OFF pin=5V (OFF) | 6 | |
| ON/OFF pin logic input threshold voltage, low (regulator ON) | VIL | 1.3 | 0.6 | V | Low (Regulator ON) | 7 | |
| ON/OFF pin logic input threshold voltage, high (regulator OFF) | VIH | 2 | V | High (Regulator OFF) | 7 | ||
| ON/OFF pin input current, high (regulator OFF) | IH | 5 | 15 | µA | VLOGIC=2.5V (Regulator OFF) | 7 | |
| ON/OFF pin input current, low (regulator ON) | IL | 0.02 | 5 | µA | VLOGIC=0.5V (Regulator ON) | 7 | |
| Maximum supply voltage (LM2596) | 45 | V | 4 | ||||
| ON/OFF pin input voltage | -0.3 | 25 | V | 4 | |||
| Feedback pin voltage | -0.3 | 25 | V | 4 | |||
| Output voltage to ground (steady state) | -1 | V | Steady state | 4 | |||
| Storage temperature range | -65 | 150 | °C | 4 | |||
| ESD susceptibility, human body model | 2 | kV | Human body model | 4 | |||
| Soldering, vapor phase (60 s) | 215 | °C | 60 sec. | 4 | |||
| Soldering, infrared (10 s) | 245 | °C | 10 sec. | 4 | |||
| Soldering, T package (10 s) | 260 | °C | 10 sec. | 4 | |||
| Maximum junction temperature | 150 | °C | 4 | ||||
| Operating junction temperature range | TJ | -40 | 125 | °C | 4 | ||
| Supply voltage (LM2596) | VIN | 4.75 | 40 | V | 4 | ||
| Thermal resistance, junction to case (TO-263) | θJC | 2 | °C/W | TO-220 or TO-263 Package, Junction to Case | 7 | ||
| Thermal resistance, junction to ambient, TO-263 (0.5 in² copper) | θJA | 50 | °C/W | TO-263, junction to ambient, single PCB, 0.5 in² 1 oz copper (Note 12) | 7 | ||
| Thermal resistance, junction to ambient, TO-263 (2.5 in² copper) | θJA | 30 | °C/W | TO-263, junction to ambient, single sided PCB, 2.5 in² 1 oz copper (Note 13) | 7 | ||
| Thermal resistance, junction to ambient, TO-263 (3 in² copper, double sided) | θJA | 20 | °C/W | TO-263, junction to ambient, double sided PCB, 3 in² 1 oz copper on LM2596S side (Note 14) | 7 |
CAD (KiCad official)
- Symbol:
LM2596S-5.0 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2596s-5-0-etched.step/lm2596s-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2596s-5-0.step/lm2596s-5-0.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
lm2596s-5-0.step |
180 KB | You want the bare part, or you mark your own boards. |
lm2596s-5-0-etched.step |
2.2 MB | You want the part with LM2596S-5.0 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 573 faces against 135 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (28 pp, sha256
26d031e9696524e9, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).