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LM5010ASDX Datasheet(PDF) 1 Page - Texas Instruments |
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LM5010ASDX Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page VIN SW BST LM5010A VCC SS RON/SD 6V - 75V Input C1 RON R2 R1 C2 VOUT L1 C3 C4 D1 C6 RTN ISEN SGND FB SHUTDOWN R3 LM5010A LM5010A-Q1 www.ti.com SNVS376E – OCTOBER 2005 – REVISED FEBRUARY 2013 High-Voltage 1-A Step-Down Switching Regulator Check for Samples: LM5010A, LM5010A-Q1 1 FEATURES APPLICATIONS 2 • Wide 6V to 75V Input Voltage Range • Non-Isolated Telecommunications Regulator • Valley Current Limiting At 1.25A • Secondary Side Post Regulator • Programmable Switching Frequency Up To 1 • Automotive Electronics MHz DESCRIPTION • Integrated 80V N-Channel Buck Switch The LM5010A Step-Down Switching Regulator is an • Integrated High Voltage Bias Regulator enhanced version of the LM5010 with the input • No Loop Compensation Required operating range extended to 6V minimum. The • Ultra-Fast Transient Response LM5010A features all the functions needed to implement a low cost, efficient, buck regulator • Nearly Constant Operating Frequency With capable of supplying in excess of 1A load current. Line and Load Variations This high voltage regulator integrates an N-Channel • Adjustable Output Voltage Buck Switch, and is available in thermally enhanced • 2.5V, ±2% Feedback Reference WSON-10 and HTSSOP-14 packages. The constant on-time regulation scheme requires no loop • Programmable Soft-Start compensation resulting in fast load transient • Thermal Shutdown response and simplified circuit implementation. The • LM5010AQ is AEC-Q100 Grade 1 and 0 operating frequency remains constant with line and qualified load variations due to the inverse relationship between the input voltage and the on-time. The valley • Packages current limit detection is set at 1.25A. Additional – WSON-10 (4 mm x 4 mm) features include: VCC under-voltage lock-out, thermal – HTSSOP-14 shutdown, gate drive under-voltage lock-out, and maximum duty cycle limiter. – Both Packages Have Exposed Thermal Pad For Improved Heat Dissipation Basic Step-Down Regulator 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 © 2005–2013, 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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