LM2594HVM-12 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM2594HVM-12 is a SIMPLE SWITCHER buck regulator with a fixed 12 V output, operating from 4.5 V to 60 V input and delivering up to 500 mA output current in an 8-pin SOIC package. It uses current-mode PWM control at 150 kHz for stable, efficient step-down conversion. Ideal for industrial power supplies, automotive accessories, and board-level DC-DC regulation.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM2594HVM-12 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2615(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM2594HVM-12?
- Fixed 12 V regulated output from a 4.5 V to 60 V wide input range suitable for automotive and industrial supplies
- 500 mA output current capability with current-mode PWM control for inherent cycle-by-cycle current limiting
- 150 kHz internal oscillator frequency enabling small external inductor and capacitor values
- Built-in protection features including thermal shutdown and current limit reducing external protection circuitry
- 8-pin SOIC package simplifying PCB layout with minimal external passive components required
What is LM2594HVM-12 used for?
The LM2594HVM-12 is designed for board-level DC-DC step-down conversion in industrial equipment, providing a regulated 12 V rail from unregulated 24 V or 48 V bus supplies. Its 4.5 V to 60 V input range accommodates automotive 12 V nominal battery lines that can surge to 45 V under load-dump conditions. Consumer electronics AC adapter outputs and off-line flyback secondary rails also use LM2594HVM-12 for secondary post-regulation when a fixed 12 V output is required.
What are the specifications of LM2594HVM-12?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 1.4A |
| Output Voltage-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 235 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 173kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 20 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM2594HVM-12 datasheet?
LM2594HVM-12 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM2594HVM-12?
Compatible alternatives and drop-in replacements for LM2594HVM-12:
Switching Regulator, Voltage-mode, 1.4A, 173kHz Switching Freq-Max, BIPolar, PDSO8
Frequently Asked Questions
What input voltage range does LM2594HVM-12 support and what output current can it deliver?
LM2594HVM-12 accepts input voltages from 4.5 V to 60 V and supplies up to 500 mA at its fixed 12 V regulated output. This combination suits 24 V and 48 V industrial bus systems that need a local 12 V rail for relay drivers, sensors, or communication modules without a large discrete regulator design.
How does the 150 kHz switching frequency of LM2594HVM-12 influence inductor and capacitor selection?
At 150 kHz, LM2594HVM-12 requires only a moderate inductance of approximately 68 µH to 330 µH and an output capacitor around 100 µF for stable 12 V regulation at 500 mA load. Higher switching frequencies would allow smaller passives, but 150 kHz balances efficiency, EMI, and component cost well for industrial and consumer power supply designs.
Can LM2594HVM-12 survive automotive load-dump transients on a 12 V vehicle battery line?
LM2594HVM-12 tolerates input voltages up to 60 V, which covers the ISO 7637 load-dump transients on a 12 V automotive battery line that can spike to 40 V or higher. This wide input headroom makes it reliable for powering 12 V accessory circuits directly from the vehicle battery without an additional transient voltage suppression stage.
How does LM2594HVM-12 current-mode control reduce the need for external overcurrent protection components?
Current-mode PWM control in LM2594HVM-12 monitors inductor current on every switching cycle, automatically reducing duty cycle when current reaches the internal limit of approximately 900 mA. This cycle-by-cycle limiting protects the 500 mA output against short circuits without requiring an external current sense resistor, fuse, or dedicated protection IC in most standard industrial power supply designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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