LM5576 Datasheet | Texas Instruments

Features - 1 LM5576-Q1 is an Automotive Grade Product that is AEC-Q100 grade 1 Qualified (- 40°C to + 125°C Operating Junction Temperature) and AEC-Q100 Grade 0 Qualified (- 40°C to + 150°C Operating Junction Temperature) - Integrated 75 V, 170 mΩ N-channel MOSFET - Ultra-Wide Input Voltage Range from 6 V to 75 V - Adjustable Output Voltage as Low as 1.225 V - 1.5% (Q1) and 1.65% (Q0) Feedback Reference Accuracy - Operating Frequency Adjustable Between 50 k Hz and 500 k Hz with Single Resistor - Master or Slave Frequency Synchronization - Adjustable Soft-Start - Emulated Current Mode Control Architecture - Wide Bandwidth Error Amplifier - Built-in Protection - HTSSOP-20EP (Exposed Pad) 2 Applications - Automotive - Industrial 3 Description The LM5576 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 ponents. Operating with an input voltage range of 6 - 75 V, the LM5576 delivers 3 A of continuous output current with an integrated 170 mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop pensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50 k Hz to 500 k Hz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5576 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-20 package featuring an exposed die attach pad for thermal dissipation. The LM5576 is supported by the full suite of WEBENCH® On-Line design tools. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM5576 LM5576-Q1 HTSSOP...