component
LM2594HVM-ADJ
Public Made by Adomby adom
UMW DC-DC Converters, SOP-8. 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
markdownLM2594HVM-ADJ
UMW · DC-DC Converters · SOP-8
LM2594HVM-ADJ from UMW, in a SOP-8. 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 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as NC with no function. |
| 2 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as NC with no function. |
| 3 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as NC with no function. |
| 4 | Feedback | input | Feedback pin (FB) senses the output voltage through an external resistor divider and regulates it to a feedback threshold voltage of 1.23V. |
| 5 | ON/OFF | input | Enable pin: drive low to turn the device on and high to turn it off, with TTL shutdown and hysteresis; floating defaults to low (on). |
| 6 | GND | power_in | Ground pin that must be placed outside the Schottky diode to output capacitor ground path to prevent switching current spikes from inducing noise into the device. |
| 7 | VIN | power_in | Supply voltage input pin; the device operates from 4.5V to 40V DC and VIN should be bypassed to GND with a suitably large capacitor. |
| 8 | Output | output | Power switch output (SW) pin, the switch node that supplies power to the output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
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 to 40V, 57V(HV); ILOAD=0.2A to 1.5A; VIN=12V, VOUT=3V, IOUT=1.5A | 5 |
| Oscillator frequency | FOSC | 117 | 150 | 183 | Khz | VFB=0 | 6 |
| Output saturation voltage | VCE | 1.2 | 1.4 | V | VFB=0, lOUT=1.5A | 6 | |
| Input voltage (HV version, absolute maximum) | VIN | -0.3 | 63 | V | 4 | ||
| Feedback pin voltage (absolute maximum) | VFB | -0.3 | 25 | V | 4 | ||
| ON/OFF pin voltage (absolute maximum) | VON/OFF | -0.3 | 25 | V | 4 | ||
| Operating junction temperature (absolute maximum) | TJ | -40 | 125 | °C | 4 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 4 | ||
| Lead temperature (soldering, 10 sec) | TLEAD | 260 | °C | Soldering, 10 sec | 4 | ||
| ESD (HBM) | 2000 | V | HBM | 4 | |||
| Supply voltage (HV version, recommended operating) | 4.5 | 60 | V | LM2594(HV) | 4 | ||
| Operating temperature (recommended) | -40 | 125 | °C | 4 | |||
| Thermal resistance, junction to ambient (SOP-8) | RJA | 100 | °C/W | Junction to ambient, no heatsink, free air | 4 |
CAD (KiCad official)
- Symbol:
LM2594HVM-ADJ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2594hvm-adj-etched.step/lm2594hvm-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2594hvm-adj.step/lm2594hvm-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (17 pp, sha256
b4935ffaa609c227, retrieved 2026-10-17, tier: lcsc) - 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).