The LM5575 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 LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ 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 LM5575 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 HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH On-Line design tools.
LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
Integrated 75V, 330mΩ N-channel MOSFET
Ultra-wide Input Voltage Range from 6V to 75V
Adjustable Output Voltage as Low as 1.225V
1.5% Feedback Reference Accuracy
Operating Frequency Adjustable Between 50kHz and 500kHz with Single Resistor
Master or Slave Frequency Synchronization
Emulated Current Mode Control Architecture
Wide Bandwidth Error Amplifier
Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.