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LM5576QMHX/NOPB bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM5576QMHX/NOPB bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 34 page BST SW COMP FB SS RAMP RT VCC VIN OUT IS GND LM5576 VIN VOUT SYNC SD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LM5576, LM5576-Q1 SNVS447J – JANUARY 2007 – REVISED NOVEMBER 2014 LM5576/-Q1 SIMPLE SWITCHER® 75 V, 3 A Step-Down Switching Regulator 1 1 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 m Ω 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 kHz and 500 kHz 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 components. Operating with an input voltage range of 6 - 75 V, the LM5576 delivers 3 A of continuous output current with an integrated 170 m Ω 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 50 kHz to 500 kHz 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 HTSSOP (20) 6.50 mm x 4.40 mm LM5576-Q1 (1) For all available packages, see the orderable addendum at the end of the datasheet. Simplified Application Schematic |
Số phần tương tự - LM5576QMHX/NOPB |
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Mô tả tương tự - LM5576QMHX/NOPB |
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