# LM2592HVS-12

**HGSEMI** · DC-DC Converters · TO-263-5

LM2592HVS-12 from HGSEMI, 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 | Positive input supply for the switching regulator, which needs a suitable input bypass capacitor to limit voltage transients; the datasheet gives an operating supply range of 4.5V to 60V and an absolute maximum supply voltage of 63V. |
| 2 | Output | output | Internal switch output that swings between (VIN - VSAT) and about -0.5V at a duty cycle of approximately VOUT/VIN, so its PC board copper area should be kept to a minimum to reduce coupling. |
| 3 | GND | power_in | Circuit ground for the regulator, to which the input and output capacitors and the ON/OFF pin return when shutdown is not used. |
| 4 | Feedback | input | Senses the regulated output voltage to close the feedback loop; the feedback pin voltage is limited to -0.3V to +25V, and on the adjustable version the R1/R2 divider sets VOUT with VREF = 1.23V. |
| 5 | ON/OFF | input | Logic input for shutdown: pulling it below about 1.3V turns the regulator on and pulling it above 1.3V (maximum 25V) shuts it down, while leaving it open or tying it to ground keeps the regulator on. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| 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 (12V version), 25°C | VOUT | 11.52 | 12 | 12.48 | V | TJ=25°C; 15V≤VIN≤60V, 0.2A≤ILOAD≤2A | 5 |
| Output voltage (12V version), full operating temperature range | VOUT | 11.4 |  | 12.6 | V | Full operating temperature range; 15V≤VIN≤60V, 0.2A≤ILOAD≤2A | 5 |
| Oscillator frequency, 25°C | fO | 127 | 150 | 173 | kHz | VIN=24V, ILOAD=500mA; TJ=25°C | 6 |
| Oscillator frequency, full operating temperature range | fO | 110 |  | 173 | kHz | Full operating temperature range; VIN=24V, ILOAD=500mA | 6 |
| Saturation voltage, 25°C | VSAT |  | 1.16 | 1.4 | V | IOUT=2A; TJ=25°C | 6 |
| Saturation voltage, full operating temperature range | VSAT |  |  | 1.5 | V | IOUT=2A; full operating temperature range | 6 |
| Maximum supply voltage |  |  |  | 63 | 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 temperature, vapor phase |  |  |  | 215 | °C | Vapor phase (60 sec.) | 4 |
| Soldering temperature, infrared |  |  |  | 245 | °C | Infrared (10 sec.) | 4 |
| Soldering temperature, T package |  |  |  | 260 | °C | T package (soldering, 10 sec.) | 4 |
| Maximum junction temperature |  |  |  | 150 | °C |  | 4 |
| Operating junction temperature range | TJ | -40 |  | 125 | °C |  | 4 |
| Supply voltage |  | 4.5 |  | 60 | V |  | 4 |
| Junction to case thermal resistance | θJC |  | 2 |  | °C/W | TO-220 or TO-263 package | 7 |
| Junction to ambient thermal resistance, TO-263 (Note 12) | θJA |  | 50 |  | °C/W | TO-263 package tab on single PCB, 0.5 in² 1 oz copper | 7 |
| Junction to ambient thermal resistance, TO-263 (Note 13) | θJA |  | 30 |  | °C/W | TO-263 package tab on single-sided PCB, 2.5 in² 1 oz copper | 7 |
| Junction to ambient thermal resistance, TO-263 (Note 14) | θJA |  | 20 |  | °C/W | TO-263 package tab on double-sided PCB, 3 in² 1 oz copper | 7 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper |  | leads soldered to a printed circuit board with (1 oz.) copper area of approximately 1 in2 | 8 |

## CAD (KiCad official)

- Symbol: `LM2592HVS-12`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm2592hvs-12-etched.step` / `lm2592hvs-12-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2592hvs-12.step` / `lm2592hvs-12.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757271311389335552) (22 pp, sha256 `1507ed47948d115d`, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/lm2592hvs-12-datasheet.pdf)