component
LM2596S-ADJRG
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM2596S-ADJRG
HANSCHIP semiconductor · DC-DC Converters · TO-263-5
LM2596S-ADJRG 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 requiring a DC source of 4.5 V to 40 V (57 V for the HV variant), with a large capacitor placed between VIN and GND to filter supply noise. |
| 2 | OUTPUT | output | Power switch output, a switching node that drives the output load and must not be driven below the internal parasitic diode turn-on voltage (use a Schottky with Vf below 0.5 V). |
| 3 | GND | power_in | Ground pin that should be routed on the output ground return path away from the Schottky diode so switching current spikes do not couple noise into the device. |
| 4 | FEEDBACK | input | Voltage feedback input that senses the output through an external resistor divider, with a regulation threshold of 1.23 V. |
| 5 | ON_OFF | input | Enable pin with hysteresis: driving it high (above 1.4 V) turns the regulator off, driving it low (below 0.8 V) turns it on, and it defaults 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 |
|---|---|---|---|---|---|---|---|
| Input operating voltage (LM2596 non-HV) | VIN | 4.5 | 40 | V | 5 | ||
| Output voltage regulation, LM2596-ADJ | VOUT | 1.193 | 1.23 | 1.267 | V | VIN=4.5V～40V, ILOAD=0.2A～3A | 4 |
| Oscillator frequency | FOSC | 127 | 150 | 173 | kHz | 5 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| Saturation voltage | VCE | 1.3 | 1.5 | V | VFB=0V, LOUT=3A | 5 | |
| Quiescent operating current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 5 | |
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 5 | |
| ON_OFF pin threshold, high (control off) | VON_OFF | 1.4 | V | 5 | |||
| ON_OFF pin threshold, low (control on) | VON_OFF | 0.8 | V | 5 | |||
| ON_OFF pin leakage current (OFF) | IH | 5 | 30 | µA | VON_OFF=2.5V(OFF) | 5 | |
| ON_OFF pin leakage current (ON) | IL | 0.2 | 10 | µA | VON_OFF=0.5V(ON) | 5 | |
| Maximum duty cycle | DMAX | 100 | % | CFB=0V | 5 | ||
| Thermal resistance junction-to-ambient (no heatsink, TO220/TO263) | RJA | 50 | ℃/W | TO220, TO263 package, no heatsink | 5 | ||
| Input voltage (recommended, LM2596) | VIN | 5 | 40 | V | LM2596 | 3 | |
| Operating junction temperature (recommended) | TJ | -40 | 125 | ℃ | 3 | ||
| Input supply voltage (absolute max, LM2596) | VIN | 40 | V | LM2596 | 3 | ||
| Feedback pin voltage (absolute) | VFB | -0.3 | V | 3 | |||
| ON_OFF pin voltage (absolute) | VON_OFF | -0.3 | V | 3 | |||
| Output pin voltage (absolute) | VOUT PUT | -0.3 | V | 3 | |||
| Operating junction temperature (absolute) | 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 |
CAD (KiCad official)
- Symbol:
LM2596S-ADJRG - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2596s-adjrg-etched.step/lm2596s-adjrg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2596s-adjrg.step/lm2596s-adjrg.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 2026-10-17, 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).