ON Semiconductor Is Now To learn more about onsemi, please visit our website at www.onsemi.com onsemi andand other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba onsemi or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided as-is and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. Typical parameters which may be provided in onsemi data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and holdo nsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others. NCP81158D Synchronous Buck MOSFET Driver The NCP81158D is a highperformance dual MOSFET gate driver in a small 3 mm x 3 mm package, optimized to drive the gates of both highside and lowside power MOSFETs in a synchronous buck www.onsemi.com converter. The driver outputs can be placed into a highimpedance state via the tristate PWM and EN inputs. The NCP81158D comes packaged with an integrated boost diode to minimize external MARKING components. A VCC UVLO function guarantees the outputs are low DIAGRAM when the supply voltage is low. 1 8 1 Features 1158D DFN8 ALYW When Device is Powered, Fast PWM Response to EN Going High CASE 506BJ Spaceefficient 3 mm x 3 mm DFN8 ThermallyEnhanced Package VCC Range of 4.5 V to 5.5 V 1158D = Specific Device Code A = Assembly Location Internal Bootstrap Diode L = Wafer Lot 5 V 3stage PWM Input Y = Year Diode Braking Capability via EN Midstate W = Work Week = PbFree Package Adaptive Anticross Conduction Circuit Protects Against (Note: Microdot may be in either location) Crossconduction during FET Turnon and Turnoff Output Disable Control Turns Off Both MOSFETs via Enable Pin VCC Undervoltage Lockout PINOUT DIAGRAM These Devices are Pbfree, Halogenfree/BFRfree and are RoHS Compliant BST 1 8 DRVH Typical Applications PWM 2 7 SW FLAG Power Solutions for Notebook and Desktop Systems 9 EN 3 6 GND VCC45 DRVL ORDERING INFORMATION Device Package Shipping NCP81158DMNTXG DFN8 3000 / Tape & (PbFree) Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: April, 2017 Rev. 1 NCP81158D/D