NCP4060A Buck Converter - High Voltage, Synchronous The NCP4060A is a high performance, high voltage, high efficiency, fully integrated, voltage mode synchronous buck converter with constant frequency voltage mode control with input www.onsemi.com feedforward architecture. It operates from input voltages ranging from 16 V to 80 V and it is capable of generating output voltages down to 1.25 V at 6 A DC loads and up to 10 A peak load currents, across a wide range of ambient temperatures. The NCP4060A exhibits QFN19 protection features that protect the load from faults like overvoltage, CASE 485FL overcurrent and overtemperature. The NCP4060A adopts a 1% 1 accurate reference voltage to maintain a tightregulated output voltage. It has a programmable switching frequency that can be set from 100 to 500 kHz. MARKING DIAGRAM Features Wide Input Voltage Range from 16 V to 80 V NCP4060A AWLYYWWG Output Current Handling: 6 A 1.25 V Internal Reference Voltage Accurate to within 1% over the Entire Temperature Range A = Assembly Lot Programmable Switching Frequency from 100 to 500 kHz WL = Wafer Lot YY = Year Externally Programmable Softstart WW = Work Week Auxiliary Bootstrap LDO from Output to Reduce Powerloss G = PbFree Package External Error Amplifier Compensation Lossless Highside and Lowside FET Current Sensing ORDERING INFORMATION Overcurrent Protection Voltage Mode Control with Input Voltage Feedforward Device Package Shipping Power Good Output NCP4060AMNTXG QFN19 2500 / Tape & (PbFree) Reel Programmable VIN UVLO For information on tape and reel specifications, Supports Prebias Startups including part orientation and tape sizes, please Over and Undervoltage Protection refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Internal Overtemperature Protection Hiccup Mode Operation for All Faults 19 Pin 6 mm x 6 mm QFN Package Typical Application Remote Radio Unit (RRU) Telecom and Datacom Applications High Voltage Point of Load Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: August, 2019 Rev. 3 NCP4060A/DNCP4060A VEXT VB LDO VB VCC VCC VDD VDD VDD BST OSC RT VIN COMP VDD Control Logic c VREF + Ramp Generator E/A PWM Logic FB and VSW UVLO SS Soft Start Power Good VCC OCP, TSD VDD Protection VB 2 A Enable EN Logic 1.2 V POR PGND PG ISET AGND Figure 1. Internal Block Diagram VDD VIN VCC VIN EN PG VOUT BST VEXT VOUT VDD VSW NCP4060A VB FB RT COMP ISET SS PGND AGND Figure 2. Typical Application Circuit www.onsemi.com 2