# LM2592HVS-ADJ

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

LM2592HVS-ADJ 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 | Supply input that requires a DC source in the 4.5 V to 60 V range, with a large-value capacitor between the supply pin and ground to remove supply noise. |
| 2 | OUTPUT | output | Power switch output pin that acts as the switching node supplying the output load. |
| 3 | GND | power_in | Ground pin that must be routed so the output capacitor ground path stays outside the Schottky diode path, to prevent switching-current spikes from coupling noise into the circuit. |
| 4 | FEEDBACK | bidirectional | Voltage feedback pin that monitors the output through an external resistor divider and regulates it, with a feedback threshold of 1.23 V. |
| 5 | ON_OFF | input | Enable pin: applying a low level runs the chip and a high level shuts it down, and it 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 | 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 (ADJ version) | VOUT | 1.193 | 1.23 | 1.267 | V | VIN=4.5V~60V, ILOAD=0.2A~2A | 4 |
| Input operating voltage | VIN | 4.5 |  | 60 | 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 frequency | FOSC | 127 | 150 | 173 | KHz |  | 5 |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| Switch pin threshold voltage, high (control off) | VON_OFF | 1.4 |  |  | V | high (control off) | 5 |
| Switch pin threshold voltage, low (control on) | VON_OFF |  |  | 0.8 | V | low (control on) | 5 |
| Switch pin leakage, OFF | IH |  | 5 | 15 | µA | VON_OFF=2.5V (OFF) | 5 |
| Switch pin leakage, ON | IL |  | 0.2 | 5 | µA | VON_OFF=2.5V (ON) | 5 |
| Saturation voltage | VCE |  | 1.3 | 1.5 | V | VFB=0, IOUT=1A | 5 |
| Maximum duty cycle | DMAX |  |  | 100 | % | VFB=0V | 5 |
| Input voltage (absolute maximum) | VIN |  |  | 60 | V |  | 3 |
| Feedback voltage (absolute maximum) | VFB | -0.3 |  |  | V |  | 3 |
| ON_OFF switch voltage (absolute maximum) | VON_OFF | -0.3 |  |  | V |  | 3 |
| Power transistor output voltage (absolute maximum) | VOUT_PUT | -0.3 |  |  | V |  | 3 |
| Operating junction temperature (absolute maximum) | TJ | -40 |  | 125 | °C |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| Lead soldering temperature | TLEAD |  |  | 245 | °C | 10 s | 3 |
| ESD capability | ESD |  |  | 2000 | V | human body model | 3 |
| Input voltage (recommended operating) | VIN | 5 |  | 60 | V |  | 3 |
| Operating junction temperature range (recommended) | TJ | -40 |  | 125 | °C |  | 3 |
| Adjustable output voltage range | VOUT | 1.23 |  | 57 | V | ADJ version (feature list) | 1 |
| Thermal resistance, junction to ambient | RJA |  | 50 |  | °C/W | no heatsink, TO-220 and TO-263 packages | 5 |

## CAD (KiCad official)

- Symbol: `LM2592HVS-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm2592hvs-adj-etched.step` / `lm2592hvs-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2592hvs-adj.step` / `lm2592hvs-adj.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/8756370601013993472) (12 pp, sha256 `e78d15e2dd393df2`, 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`, 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-adj-datasheet.pdf)