Model No: LM25184QNGURQ1
Texas Instruments LM25184QNGURQ1
Manufacturer: Texas Instruments
SEMICON NO.: LM25184QNGURQ1
Package: 8-WSON
Stock: In stock
Description: IC Flyback Switching Regulator 12V 4.1A 8WSON
SEMICON NO.: LM25184QNGURQ1
Package: 8-WSON
Stock: In stock
Description: IC Flyback Switching Regulator 12V 4.1A 8WSON
Quantity :
| Mfr | Texas Instruments |
| Type | Primary-Side Regulated (PSR) Flyback Converter |
| Input Voltage Range | 4.5V to 42V |
| Output Voltage | Fixed 12V |
| Output Current (Max) | 4.1A |
| Output Power (Max) | Up to 15W |
| RAM Size | 65V, 0.11Ω |
| Switching Frequency | 12kHz to 350kHz |
| Topology | Flyback |
| Output Configuration | Positive |
| Regulation Accuracy | ±1.5% (Line & Load) |
| Control Mode | Boundary Conduction Mode (BCM) |
| Synchronous Rectification | No |
| Package/Sizes | 48-LQFP |
| Operating Temperature | -40°C to +150°C |
| Mounting Type | Surface Mount (SMD) |
| RoHS Compliance | Yes |
LM25184QNGURQ1 switching regulator, Automotive PSR flyback converterOverview
The LM25184QNGURQ1 is a high-performance, automotive-grade switching regulator designed for isolated DC-DC power conversion in harsh environments. Built on a primary-side regulation (PSR) flyback topology, it integrates a 65V, 4.1A MOSFET to deliver up to 15W output power with ±1.5% total output voltage accuracy. Operating across a wide 4.5V to 42V input range, the device supports 12V fixed or adjustable outputs via external resistors, eliminating the need for optocouplers or auxiliary windings. Its boundary conduction mode (BCM) switching enables quasi-resonant turn-off, reducing EMI and improving efficiency. Key features include thermal shutdown, overcurrent protection, and UVLO with hysteresis, ensuring robustness in automotive HEV/EV powertrain systems, traction inverters, and industrial IGBT/SiC gate drivers.
Flyback Switching Regulator Key Features and Applications
The LM25184QNGURQ1 excels in high-density, isolated power designs by integrating critical components into a compact 4mm×4mm footprint. Its PSR architecture samples output voltage directly from the primary side, simplifying layout and reducing cost. The device supports soft-start programming to mitigate inrush currents and offers optional VOUT temperature compensation for stable performance across environmental variations. With a 350kHz switching frequency, it balances efficiency and magnetic component size, while ultra-low EMI emissions comply with CISPR 25 Class 5 limits. Applications include isolated bias supplies for automotive body electronics, 48V mild-hybrid systems, and industrial motor drives requiring galvanic isolation. The regulator's high integration and protection features make it ideal for safety-critical designs where reliability and thermal robustness are paramount.
The LM25184QNGURQ1 is a high-performance, automotive-grade switching regulator designed for isolated DC-DC power conversion in harsh environments. Built on a primary-side regulation (PSR) flyback topology, it integrates a 65V, 4.1A MOSFET to deliver up to 15W output power with ±1.5% total output voltage accuracy. Operating across a wide 4.5V to 42V input range, the device supports 12V fixed or adjustable outputs via external resistors, eliminating the need for optocouplers or auxiliary windings. Its boundary conduction mode (BCM) switching enables quasi-resonant turn-off, reducing EMI and improving efficiency. Key features include thermal shutdown, overcurrent protection, and UVLO with hysteresis, ensuring robustness in automotive HEV/EV powertrain systems, traction inverters, and industrial IGBT/SiC gate drivers.
Flyback Switching Regulator Key Features and Applications
The LM25184QNGURQ1 excels in high-density, isolated power designs by integrating critical components into a compact 4mm×4mm footprint. Its PSR architecture samples output voltage directly from the primary side, simplifying layout and reducing cost. The device supports soft-start programming to mitigate inrush currents and offers optional VOUT temperature compensation for stable performance across environmental variations. With a 350kHz switching frequency, it balances efficiency and magnetic component size, while ultra-low EMI emissions comply with CISPR 25 Class 5 limits. Applications include isolated bias supplies for automotive body electronics, 48V mild-hybrid systems, and industrial motor drives requiring galvanic isolation. The regulator's high integration and protection features make it ideal for safety-critical designs where reliability and thermal robustness are paramount.
AlternativeDC-DC isolated power Models and Key Specifications
For designers seeking flexibility, Texas Instruments offers complementary regulators:
For designers seeking flexibility, Texas Instruments offers complementary regulators:
- LM25180QNGURQ1: Adjustable output version with 2.5A peak current, suited for dynamic load applications.
- LM5156-Q1: Dual-output controller with 100V input rating, targeting high-voltage automotive systems.
- LM25183NGUR: Non-isolated buck regulator with 3A output, optimized for point-of-load conversion.
- TPSI3050QDWZRQ1: Digital isolator with 5kV isolation, ideal for pairing with non-isolated regulators in safety-critical designs.
Each switching regulator model retains compatibility with automotive standards while addressing specific design needs, such as higher current, multiple outputs, or enhanced isolation.
