LM5576Q0MHX/NOPB

The LM5576Q0 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. Operating with an input voltage range of 6 - 75V, the LM5576Q0 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator 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. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self - synchronize or to synchronize to an external clock. The LM5576Q0 ensures robustness with cycle - by - cycle current limit, short - circuit protection, thermal shut - down, and remote shut - down. The device is available in a power enhanced TSSOP - 20 package featuring an exposed die attach pad for thermal dissipation. The LM5576Q0 is supported by the full suite of WEBENCH On - Line design tools.

Applications

• Automotive
• Industrial

Key features

• Automotive Grade Product that is AEC - Q100 Grade 0 Qualified
• -40°C to 150°C Operating Junction Temperature
• Integrated 75V, 170mΩ N - Channel MOSFET
• Ultra - Wide Input Voltage Range from 6V to 75V
• Adjustable Output Voltage as Low as 1.225V
• ±1.65% Feedback Reference Accuracy
• Operating Frequency Adjustable Between 50kHz and 500kHz with Single Resistor
• Master or Slave Frequency Synchronization
• Adjustable Soft - Start
• Emulated Current Mode Control Architecture
• Wide Bandwidth Error Amplifier
• Built - In Protection