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LM25007SDXh Folha de dados(PDF) 1 Page - Texas Instruments |
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LM25007SDXh Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 19 page LM25007 www.ti.com SNVS401C – JANUARY 2006 – REVISED FEBRUARY 2013 LM25007 42V, 0.5A Step-Down Switching Regulator Check for Samples: LM25007 1 FEATURES DESCRIPTION The LM25007 is a monolithic step-down switching 2 • Integrated 0.74 Ω N-Channel MOSFET Switch regulator featuring all of the functions needed to • Guaranteed 0.5A Output Current implement a low cost, efficient, power supply. • Ultra-Fast Transient Response Capable of driving a 0.5A load over a 9V-42V input voltage range, this device is easy to apply and is • Up to 800kHz Operation provided in the small VSSOP-8 and the thermally • No Control Loop Compensation Required enhanced WSON-8 packages. Ultra-fast transient • Vin Feed Forward Provides Constant response is achieved through the use of a constant Operating Frequency on-time architecture with Vin feed forward. This feature provides an almost constant operating • 2% Accurate 2.5V Feedback from -40°C to frequency over load and input voltage variations. The 125°C operating frequency can be adjusted with a single • Highly Efficient Operation resistor. This architecture is easy to use and tolerant • Intelligent Current Limit Protection of component selection. An intelligent current limit is implemented in the LM25007 with forced off time that • External Shutdown Control is inversely proportional to Vout thus ensuring • Thermal Shutdown recovery from fault conditions. The output voltage • VSSOP and Thermally Enhanced WSON may be set from 2.5V to >30V. To improve efficiency Packages in light load applications, the Vcc pin can be connected to an external voltage source to eliminate the drop through the internal regulator. Additional TYPICAL APPLICATIONS features include: thermal shutdown, Vcc under- • 12VDC and 24VDC Distributed Rail Systems voltage lockout, gate drive under-voltage lockout, and • 24VAC Systems max duty cycle limiter. • Automotive Body Electronics and Telematics • Industrial Systems • HB-LED Constant Current Source • Package: – VSSOP-8 – WSON-8 (4mm x 4mm) 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2013, 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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