NCV8843 Datasheet | onsemi

Buck Regulator Synchronous 1.5 A, 340 k Hz The NCV8843 is a 1.5 A buck regulator IC operating at a fixed- frequency of 340 k Hz. The device uses the V2t control architecture to provide unmatched transient response, the best overall regulation and the simplest loop pensation for today’s high- speed logic. The NCV8843 acmodates 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. Features - V2 Architecture Provides Ultra- Fast Transient Response, Improved Regulation and Simplified Design - Wide Operating Range: 4 V to 40 V - 2.0% Error Amp Reference Voltage Tolerance - Switch Frequency Decrease of 4:1 in Short Circuit Conditions Reduces Short Circuit Power Dissipation - BOOST Lead Allows “Bootstrapped” Operation to Maximize Efficiency - Sync Function for Parallel Supply Operation or Noise Minimization - Shutdown Lead Provides Power- Down Option - 1.0 m A Quiescent Current During Power- Down - Thermal Shutdown - Soft- Start - Exposed Pad Packages for Enhanced Thermal Characteristics - NCV Prefix for Automotive and Other Applications Requiring Site and Change Control - These are Pb- Free Devices http://onsemi. MARKING DIAGRAMS 16 1 SO- 16W EP PW SUFFIX CASE 751AG NCV8843 AWLYYWWG 18 1 DFN18 MN SUFFIX CASE 505 NCV8843 AWLYYWW G 8 1 SOIC- 8 D SUFFIX CASE...