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LM5574QMTX Datasheet(PDF) 1 Page - Texas Instruments |
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LM5574QMTX Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page BST SW COMP FB SS RAMP RT VCC VIN OUT IS GND LM5574 VIN VOUT SYNC SD LM5574, LM5574-Q1 www.ti.com SNVS478F – JANUARY 2007 – REVISED APRIL 2013 LM5574/LM5574-Q1 SIMPLE SWITCHER® 75V, 0.5A Step-Down Switching Regulator Check for Samples: LM5574, LM5574-Q1 1 FEATURES DESCRIPTION The LM5574 is an easy to use SIMPLE SWITCHER® 23 • LM5574-Q1 is an Automotive Grade Product buck regulator which allows design engineers to that is AEC-Q100 Grade 1 Qualified ( −40°C to + design and optimize a robust power supply using a 125°C Operating Junction Temperature) minimum set of components. Operating with an input • Integrated 75V, 750m Ω N-channel MOSFET voltage range of 6 - 75V, the LM5574 delivers 0.5A of continuous output current with an integrated 750m Ω • Ultra-Wide Input Voltage Range from 6V to 75V N-Channel MOSFET. The regulator utilizes an • Adjustable Output Voltage as Low as 1.225V Emulated Current Mode architecture which provides • 1.5% Feedback Reference Accuracy inherent line regulation, tight load transient response, • Operating Frequency Adjustable Between and ease of loop compensation without the usual limitation of low-duty cycles associated with current 50kHz and 500kHz with Single Resistor mode regulators. The operating frequency is • Master or Slave Frequency Synchronization adjustable from 50kHz to 500kHz to allow • Adjustable Soft-Start optimization of size and efficiency. To reduce EMI, a • Emulated Current Mode Control Architecture frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to • Wide Bandwidth Error Amplifier synchronize to an external clock. The LM5574 • Built-in Protection ensures robustness with cycle-by-cycle current limit, • Automotive Grade Product Datasheet that is short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a AEC-Q100 Grade 0 Qualified is Available Upon TSSOP-16 package. The LM5574 is supported by the Request full suite of WEBENCH® On-Line design tools. – ( −40°C to + 150°C Operating Junction Temperature) PACKAGE • TSSOP-16 APPLICATIONS • Automotive • Industrial Simplified Application Schematic 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 WEBENCH is a registered trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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