component
LM2596HVS-3.3RG
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
markdownLM2596HVS-3.3RG
HANSCHIP semiconductor · DC-DC Converters · TO-263-5
LM2596HVS-3.3RG 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 pin; requires a DC supply of 4.5V to 40V (57V for the HV type), with a large capacitor placed between this pin and ground to suppress supply noise. |
| 2 | OUTPUT | output | Power switch output pin; it is the switching node that drives the output load and inductor. |
| 3 | GND | power_in | Ground pin; the datasheet says it should be routed on a ground path separate from the output point of the Schottky diode to prevent switching-current spikes from coupling noise into the supply. |
| 4 | FEEDBACK | input | Voltage feedback pin that senses the output through an external resistor divider; the feedback threshold voltage is 1.23V. |
| 5 | ON_OFF | input | Enable pin: applying a high level (above 1.4V threshold) shuts the chip down, a low level (below 0.8V) enables it, and it defaults 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 | 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 voltage regulation (LM2596HV-3.3) | VOUT | 3.168 | 3.3 | 3.432 | V | VIN=4.75V |
4 |
| Input operating voltage (LM2596HV) | VIN | 4.5 | 57 | V | 5 | ||
| Switching frequency | FOSC | 127 | 150 | 173 | kHz | 5 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| ON_OFF pin threshold voltage, high (control off) | VON_OFF | 1.4 | V | high level (control off) | 5 | ||
| ON_OFF pin threshold voltage, low (control on) | VON_OFF | 0.8 | V | low level (control on) | 5 | ||
| ON_OFF pin input current IH | IH | 5 | 15 | uA | VON_OFF=2.5V(ON) | 5 | |
| ON_OFF pin input current IL | IL | 0.2 | 5 | uA | VON_OFF=2.5V(ON) | 5 | |
| Saturation voltage | VCE | 1.3 | 1.5 | V | VFB=0V, LOUT=3A | 5 | |
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 5 | |
| Quiescent operating current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 5 | |
| Absolute maximum input supply voltage (LM2596HV) | VIN | 57 | V | LM2596HV | 3 | ||
| Voltage feedback pin voltage | VFB | -0.3 | V | upper limit printed as VIN (not a number) | 3 | ||
| ON_OFF pin voltage | VON_OFF | -0.3 | V | upper limit printed as VIN (not a number) | 3 | ||
| Power transistor output pin voltage | VOUT | -0.3 | V | upper limit printed as VIN (not a number) | 3 | ||
| Operating junction temperature | TJ | -40 | 125 | ℃ | 3 | ||
| Storage temperature | TSTG | -65 | 150 | ℃ | 3 | ||
| Lead soldering temperature | TLEAD | 245 | ℃ | 10 s | 3 | ||
| Recommended input voltage (LM2596HV) | VIN | 5 | 57 | V | 3 | ||
| Recommended operating junction temperature range | TJ | -40 | 125 | ℃ | 3 | ||
| Thermal resistance, junction to ambient | RJA | 50 | ℃/W | no heatsink, TO220/TO263 package | 5 |
CAD (KiCad official)
- Symbol:
LM2596HVS-3.3RG - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2596hvs-3-3rg-etched.step/lm2596hvs-3-3rg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2596hvs-3-3rg.step/lm2596hvs-3-3rg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (14 pp, sha256
27a648127d802573, 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).