component
LM2596S-12RG
Public Made by Adomby adom
HANSCHIP semiconductor DC-DC Converters, TO-263-5. 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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LM2596S-12RG
HANSCHIP semiconductor · DC-DC Converters · TO-263-5
LM2596S-12RG from HANSCHIP semiconductor, in a TO-263-5. 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 that requires a DC supply of 4.5 V to 40 V (the 57 V limit applies only to the HV variants), with a large bypass capacitor between VIN and GND to suppress supply noise. |
| 2 | OUTPUT | output | Power switch output and switching node that drives the output load; the OUT pin negative voltage must stay above the internal parasitic diode turn-on voltage, so a Schottky diode with Vf below 0.5 V is recommended. |
| 3 | GND | power_in | Ground pin that should be routed on a ground path away from the Schottky diode output point to limit switching-current spike noise (datasheet text partially garbled in the source). |
| 4 | FEEDBACK | bidirectional | Voltage feedback pin that senses the output through a resistor divider and regulates it, with a feedback threshold voltage of 1.23 V. |
| 5 | ON_OFF | input | Enable pin in which a high level (threshold 1.4 V) turns the regulator off and a low level (threshold 0.8 V) turns it on; the pin defaults to low when floating. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | TO-263-5 |
| 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 regulation voltage (LM2596-12) | VOUT | 11.52 | 12 | 12.48 | V | VIN=15V～40V, ILOAD=0.2A～3A | 4 |
| Input operating voltage (LM2596), recommended | VIN | 5 | 40 | V | 3 | ||
| Input operating voltage (LM2596) | VIN | 4.5 | 40 | V | 5 | ||
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 5 | |
| Quiescent operating current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 5 | |
| Oscillator (operating) frequency | FOSC | 127 | 150 | 173 | kHz | 5 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| Switch pin threshold voltage, OFF (control off) | VON_OFF | 1.4 | V | 5 | |||
| Switch pin threshold voltage, ON (control on) | VON_OFF | 0.8 | V | 5 | |||
| Switch pin leakage, OFF state | IH | 5 | 30 | µA | VON_OFF=2.5V(OFF) | 5 | |
| Switch pin leakage, ON state | IL | 0.2 | 10 | µA | VON_OFF=0.5V(ON) | 5 | |
| Saturation voltage | VCE | 1.3 | 1.5 | V | VFB=0V, LOUT=3A | 5 | |
| Maximum duty cycle | DMAX | 100 | % | CFB=0V | 5 | ||
| Efficiency (LM2596-12) | η | 90 | % | VIN=25V,VOUT=5V, ILOAD=3A | 4 | ||
| Thermal resistance, junction to ambient (no heatsink) | RJA | 50 | ℃/W | No heatsink, TO220,TO263 package | 5 | ||
| Input supply voltage LM2596 (absolute maximum) | VIN | 40 | V | 3 | |||
| Feedback pin voltage (absolute maximum) | VFB | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Switch pin voltage (absolute maximum) | VON_OFF | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Power transistor output pin voltage (absolute maximum) | VOUT | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Operating junction temperature (absolute maximum) | TJ | -40 | 125 | ℃ | 3 | ||
| Storage temperature | TSTG | -65 | 150 | ℃ | 3 | ||
| Lead soldering temperature | TLEAD | 245 | ℃ | 10 s | 3 | ||
| ESD capability (human body model) | ESD | 2000 | V | Human body model | 3 | ||
| Operating junction temperature range (recommended) | TJ | -40 | 125 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
LM2596S-12RG - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2596s-12rg-etched.step/lm2596s-12rg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2596s-12rg.step/lm2596s-12rg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (14 pp, sha256
1d030bc28ae7c67a, 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-haiku-5-5(text), consensusclaude-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).