component
LM2594HVM-12
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-12
UMW · DC-DC Converters · SOP-8
LM2594HVM-12 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. |
| 2 | NC | unconnected | No connection. |
| 3 | NC | unconnected | No connection. |
| 4 | Feedback | input | Feedback pin (FB) that senses the output voltage through the output (fixed-version or external resistor divider) network to regulate it, with a feedback threshold voltage of 1.23V. |
| 5 | ON/OFF | input | Enable pin: drive low to turn the device on, drive high to turn it off; floating is default low. |
| 6 | GND | power_in | Ground pin; layout care is needed, placed outside of the Schottky diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise. |
| 7 | VIN | power_in | Supply voltage input pin; bypass VIN to GND with a suitably large capacitor to eliminate noise on the input (recommended maximum 60V for the HV version). |
| 8 | Output | output | Power switch output pin (SW), the switch node that supplies power to the output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Power Supply Chip |
| 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 (12V version) | VOUT | 11.52 | 12 | 12.48 | V | VIN=15V to 40V, 60V(HV), ILOAD=0.2A to 1.5A | 5 |
| Efficiency (12V version) | η | 90 | % | VIN=25V, VOUT=12V, IOUT=1.5A | 5 | ||
| Shutdown Supply Current | ISTBY | 80 | 200 | µA | VON/OFF=5V | 6 | |
| Quiescent Supply Current | IQ | 2 | 10 | mA | VON/OFF=0V, VFB=VIN | 6 | |
| Oscillator Frequency | FOSC | 117 | 150 | 183 | Khz | 6 | |
| Switch Current Limit | IL | 2 | 5 | A | VFB=0 | 6 | |
| Supply Voltage (HV) | VIN | 4.5 | 60 | V | LM2594(HV) | 4 | |
| Operating Temperature | -40 | 125 | °C | 4 | |||
| Operating Temperature (ordering) | -40 | 85 | °C | LM2594HVM-12 ordering information | 16 | ||
| Input Voltage (HV) | VIN | -0.3 | 63 | V | LM2594(HV) | 4 | |
| Feedback Pin Voltage | VFB | -0.3 | 25 | V | 4 | ||
| ON/OFF Pin Voltage | VON/OFF | -0.3 | 25 | V | 4 | ||
| Operating Junction Temperature | TJ | -40 | 125 | °C | 4 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 4 | ||
| Lead Temperature | TLEAD | 260 | °C | Soldering, 10 sec | 4 | ||
| ESD (HBM) | 2000 | V | HBM | 4 | |||
| Thermal Resistance Junction to Ambient (SOP-8) | RJA | 100 | °C/W | No Heatsink, Free Air | 4 |
CAD (KiCad official)
- Symbol:
LM2594HVM-12 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2594hvm-12-etched.step/lm2594hvm-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2594hvm-12.step/lm2594hvm-12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (17 pp, sha256
b4935ffaa609c227, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).