Product Overview NCV8843: Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability For complete documentation, see the data sheet Product Description 2 The NCV8843 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V ™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection. Features Benefits 2 • V ™ Control Architecture • • • • 2.0% Error Amp Reference Voltage Tolerance Cycle-by-Cycle Current Limiting Switch Frequency Decrease of 4:1 in Short Circuit Bootstrapped Operation (BOOST) • • • • Synchronization to External Clock (SYNC) 1.0 A Shutdown Quiescent Current Thermal Shutdown Soft-Start • Ultra-fast Transient Response, Improved Regulation and Simplified Design • Tight Output Regulation • Limits Switch and Inductor Current • Reduces Short Circuit Power Dissipation • Increased Efficiency and Minimized On-Chip Power Dissipation • Synchronization to External Clock (SYNC) • Minimize Current Consumption when SHDNB is Asserted • Protect IC from Over-Temperature • Decrease Inrush Current and Minimize Output Over-shoot During Start-Up • Pb-Free Packages are Available For more features, see the data sheet Applications End Products • Automotive • Industrial • Dc-dc power supplies Part Electrical Specifications Product Compliance Status Topology Control Mode VCC Min (V) VCC Max (V) NCV8843MNR2G AEC Qualified Active StepDown V2 4 40 Active StepDown V2 4 40 VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type 1.5 Up to 700 DFN-18 1.5 Up to 700 SOIC-16W PPAP Capable Pb-free Halide free NCV8843PWR2G AEC Qualified PPAP Capable Pb-free Halide free Application Diagram For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016