Description: LM5576MHX absolute maximum ratings: (1) VIN to GND: 76V; (2) BST to GND: 90V; (3) PRE to GND: 76V; (4) SW to GND (Steady State): -1.5V; (5) BST to VCC: 76V; (6) SD, VCC to GND: 14V; (7) BST to SW: 14V; (8) OUT to GND: Limited to Vin; (9) SYNC, SS, FB, RAMP to GND: 7V; (10) ESD Rating Human Body Model: 2kV; (11) Storage Temperature Range: -65°C to +150°C. More: LM5576MHX features: (1) Integrated 75V, 170mΩ N-channel MOSFET; (2) Ultra-wide input voltage range from 6V to 75V; (3) Adjustable output voltage as low as 1.225V; (4) 1.5% feedback reference accuracy; (5) Operating frequency adjustable between 50kHz and 500kHz with a single resistor; (6) Master or slave frequency synchronization; (7) Adjustable soft-start; (8) Emulated current mode control architecture; (9) Wide bandwidth error amplifier; (10) Built-in protection. The LM5576MHX is a user-friendly SIMPLE SWITCHER buck regulator that enables design engineers to create and optimize a robust power supply using a minimal set of components. Operating with an input voltage range of 6V to 75V, the LM5576MHX delivers 3A of continuous output current with an integrated 170mΩ N-channel MOSFET. The LM5576MHX employs an Emulated Current Mode architecture that provides inherent line regulation, tight load transient response, and ease of loop compensation while overcoming the typical limitations of low-duty cycles found in current mode regulators.
The LM5576MHX is designed for high-performance applications requiring a reliable and efficient power supply solution. The device's absolute maximum ratings indicate its robust nature, allowing it to handle significant voltage levels across various pins, ensuring protection against over-voltage conditions. The integrated N-channel MOSFET with a rating of 75V and 170mΩ on-resistance minimizes conduction losses, enhancing overall efficiency during operation.
With an ultra-wide input voltage range from 6V to 75V, the LM5576MHX is particularly versatile, making it suitable for a variety of applications, from industrial to consumer electronics. The adjustable output voltage capability down to 1.225V allows for flexibility in design, accommodating different load requirements. The feedback reference accuracy of 1.5% ensures that the output voltage remains stable under varying load conditions, which is critical for sensitive electronic devices.
The adjustable operating frequency, ranging from 50kHz to 500kHz, can be set with a single resistor, allowing for optimization based on the application's specific requirements. Additionally, the option for master or slave frequency synchronization enables multiple LM5576MHX devices to operate in unison, reducing electromagnetic interference and improving overall system performance.
The adjustable soft-start feature is essential for applications where inrush current must be controlled to prevent damage to components or to minimize power supply disruptions. The emulated current mode control architecture enhances the regulator's performance by providing improved line regulation and transient response, making it easier to achieve stable operation across a wide range of conditions.
Furthermore, the wide bandwidth error amplifier integrated into the LM5576MHX contributes to its performance by allowing for faster response to load changes, ensuring that the output voltage remains within specified limits. The built-in protection features, including over-voltage, under-voltage, and thermal shutdown, provide additional reliability, safeguarding both the LM5576MHX and the connected load from potential damage.
In summary, the LM5576MHX is a highly capable buck regulator that combines flexibility, efficiency, and robustness, making it an ideal choice for modern power supply designs. Its comprehensive feature set and wide operational parameters facilitate the development of reliable power solutions across various applications.LM5576MHX absolute maximum ratings: (1)VIN to GND: 76V; (2)BST to GND: 90V; (3)PRE to GND: 76V; (4)SW to GND (Steady State): -1. 5V; (5)BST to VCC: 76V; (6)SD, VCC to GND: 14V; (7)BST to SW: 14V; (8)OUT to GND: Limited to Vin; (9)SYNC, SS, FB, RAMP to GND: 7V; (10)ESD Rating Human Body Model: 2kV; (11)Storage Temperature Range: -65ƒ to +150ƒ.
The- LM5576MHX utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. LM5576MHX absolute maximum ratings: (1)VIN to GND: 76V; (2)BST to GND: 90V; (3)PRE to GND: 76V; (4)SW to GND (Steady State): -1.
225V; (4)1. 5% feedback reference accuracy; (5)Operating frequency adjustable between 50kHz and 500kHz with single resistor; (6)Master or slave frequency synchronization; (7)Adjustable soft-start; (8)Emulated current mode control architecture; (9)Wide bandwidth error amplifier; (10)Built-in protection. The LM5576MHX is an easy to use SIMPLE SWITCHER buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components.
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